Contested Cases

The Apostle Who Wrote In: Fact-Checking a Defender of the Process Church

By Brian Nuckols · · 19 min read

Summary

A contemporary Process Church adherent emailed truecrimesarticles.com with a transcribed monologue defending the group as a misunderstood psychotherapeutic experiment that became America's largest no-kill animal sanctuary. The historical spine of his account checks out against Bainbridge, Wyllie, and the Best Friends record. The satanic-panic counter-history he repeated, which lives downstream of Ed Sanders and Maury Terry, does not. Several sources he cited cannot be confirmed to exist. The piece walks the encounter, the fact-check, and the larger pattern of how Process lore self-replicates citations no one has audited in fifty years.

Table of Contents

Evidence Dashboard

MHEES v0.2

Each claim is scored across six axes: Provenance, Reliability, Corroboration, Credibility, Inference Distance, and Defeasibility. Strong Moderate Weak

Claim PRCIDF
Bill Mentzer is the head of a Process-derived Four P Movement and the figure Maury Terry called Manson II P5 RE C4 I5 D4 F4
David Berkowitz admitted membership in the Four P Movement in the 1999 epilogue to The Ultimate Evil and witnessed German shepherd sacrifices P3 RD C3 I4 D3 F3
Mary Ann MacLean believed she was the reincarnation of Joseph Goebbels and the Process was a front for a German neo-fascist group founded by the German Democratic Party P6 RF C5 I6 D5 F5
Bruce Davis of the Manson Family visited the Process Church London headquarters and the London Scientology headquarters in 1968 P3 RC C3 I3 D3 F3
The Process Church evolved through Foundation Faith into Best Friends Animal Society at Kanab, Utah P1 RA C1 I1 D1 F1
About MHEES scoring

P (Provenance): P1 verified public record to P6 analytical product

R (Reliability): A completely reliable to F cannot judge

C (Corroboration): C1 three or more independent to C5 contested

I (Credibility): I1 confirmed by other means to I6 cannot judge

D (Inference Distance): D1 direct statement to D4 interpretive

F (Defeasibility): F1 falsification tested to F4 non-falsifiable

A Stranger Writes In About a Cult

The contact form on this site exists for tips. It receives, on most days, the kinds of messages a true-crime publication would expect: a reader with a missing-person family member, a researcher with a court document, a publicist for a podcast. On a Friday afternoon in late April, it received something else. A man I will call the Apostle, since he sent no name and the substance of what he sent is what matters, submitted a transcribed monologue of roughly nine thousand words on the history of the Process Church of the Final Judgment.

The monologue had been generated by a meeting-transcription tool, with all the artifacts that implies. Words bled into one another. The tool rendered Topanga Canyon as Topeka. It rendered Eliphas Levi as elephas levi. It rendered Sirhan Sirhan as sir Han sirhan. The phrase Goat of Mendes, the Sabbatic Goat carried on the original Process robes, came out as the goat of main desk. Halfway through, the tool started ingesting whatever audio was playing in the background of the room, so that a passage on the Process magazine’s typology of Jehovah, Lucifer, and Satan was interrupted by lyrics from what sounded like LMFAO’s Sexy and I Know It and a fragment of someone’s mixtape about enemies trying to drain his energy. Past the music, the monologue continued.

The Apostle’s argument, once the noise was filtered, was direct. The Process Church had been libeled for fifty years by the satanic-panic literature and by the people who had inherited that literature without checking it. The group had not directed the Manson murders. It had not run the Son of Sam shootings. It had not sacrificed German shepherds in Untermyer Park. It had been an unusually intelligent psychotherapeutic experiment that became, after a long arc through Mexican hurricanes and English Mayfair townhouses and Utah desert, the largest no-kill animal sanctuary in the United States. The Apostle wanted the record corrected. He had assembled, from memory and from what sounded like a documentary playing in the background, the materials with which the correction could be made.

I read the monologue twice. I then ran it through a fact-check that consumed two more days than I had planned to give it. What follows is the encounter, the audit, and the larger pattern that surfaced once both were complete.

What the Apostle Got Right

The historical spine of the monologue holds. Robert Moor, who would rebrand himself Robert de Grimston, and Mary Ann MacLean, who had reached senior auditing rank in British Scientology, met at the Hubbard Association of Scientologists International offices on Fitzroy Street in London in the early 1960s. They left Scientology in 1962 and 1963, married, and opened a private therapeutic practice called Compulsions Analysis that combined the Scientology auditing model with concepts drawn from Alfred Adler’s individual psychology. By 1966 the practice had become a religious community, the Process Church of the Final Judgment, headquartered at Balfour Place in Mayfair. The Apostle’s transcription tool turned Balfour Place into Tubao, but the address it was reaching for is the right one.

The hurricane episode is real. In the late summer of 1966 the Process traveled to a coastal site at Sisal in the Yucatán, where they established a compound called Xtul. Hurricane Inez, which made landfall in early October, destroyed the compound and triggered the theological turn from Compulsions Analysis to a fully religious self-understanding. The four-god typology, which the mature Process built around Jehovah the lawgiver, Lucifer the light-bearer, Satan the adversary, and Christ the unifier, emerged from this period and structured the magazine, the recruitment instrument, and the ritual life of the group from 1967 onward.

The Apostle’s central characterological claim, that Mary Ann MacLean was the actual omega and that Robert de Grimston was the front, is also substantially correct. Timothy Wyllie, whose 2009 Feral House memoir Love Sex Fear Death remains the load-bearing insider account of the group, describes a household in which Mary Ann’s psychological perception was the engine and Robert’s prose was the surface. The Apostle cited a passage from what he called Robert’s Initial Sketch for an Autobiography, an unpublished manuscript I have not been able to locate in any archive, in which Robert is alleged to have written the most damning testimony any cult founder has ever offered against his own consort:

She was after my soul. She wanted to drown my individuality in her own. She wanted to encompass me completely, starve my reality and replace it with her own. She’d done this with countless other people and she’d do it with countless more. I was just another candidate.

If the Initial Sketch exists, the passage is the most useful primary-source moment in the entire monologue. It describes the asymmetry of the omega from the inside, in the voice of the person who lost the asymmetry. Whether the manuscript exists is a question I will return to.

The celebrity orbit checks out. Mick Jagger and Marianne Faithfull appeared in Process magazine interviews during the London period. Kenneth Anger, whose Lucifer Rising was already in production, drew on the Lucifer-as-light-bearer iconography that the Process had codified. George Clinton’s Funkadelic reproduced de Grimston’s writing on two consecutive albums: a piece titled simply Fear in the gatefold of Maggot Brain in 1971, and a piece on race and apocalypse on America Eats Its Young in 1972. The liner notes are a matter of vinyl, not interpretation. They are still on the records.

The Best Friends arc, which is the part of the monologue most likely to make a casual reader assume the Apostle is making things up, is the part most thoroughly documented. After the 1974 schism in which Mary Ann excommunicated Robert from the Council of Masters, the Process passed through two name changes — the Foundation Church of the Millennium and then the Foundation Faith of the Millennium — and relocated its remaining core to a 3,700-acre tract outside Kanab, Utah, in 1984. The religious mission progressively dissolved into animal sheltering. The group restructured in 1991 as Best Friends Animal Society. The 2007 National Geographic series DogTown was filmed at the Kanab sanctuary. The same circle of people who had built a four-god apocalyptic theology in Mayfair in 1967 was, by the early 2000s, running the largest no-kill animal sanctuary in the United States and producing reality television about dogs.

This is not a minor observation. It is the load-bearing fact about the Process. Whatever else the group was, it executed the longest organizational arc of any 1960s new religious movement in American history, and the arc terminated in something most people who write about the Process do not connect to it.

What the Apostle Got Wrong

The Apostle’s defense was at its strongest when he was reciting the verifiable historical spine. It collapsed, in characteristic ways, when he turned to the satanic-panic counter-history. Here the monologue began to recite, as if from a single source, a series of claims that have circulated in the Process literature since the late 1980s and that have rarely been audited.

The Mentzer problem. The Apostle, paraphrasing Maury Terry’s Ultimate Evil, identified the figure Terry called Manson II as Bill Mentzer, the convicted killer of Cotton Club producer Roy Radin, and described Mentzer as quite possibly the Grand Chingón, the title Terry assigned to the head of a Process-derived organization called the Four P Movement. Bill Mentzer is a real person. He is currently serving a life sentence at a California state prison for the 1983 contract murder of Roy Radin, a killing that Bugliosi prosecuted and that has its own substantial documentary record. None of that record establishes Mentzer as a member of any Process organization, as a leader of any Four P Movement, or as the figure Terry called Manson II. The identification is Maury Terry’s analytical construction, drawn from informant testimony of contested reliability and from circumstantial proximity. It has been repeated by Process commentators as if it were settled fact for almost forty years. It is not. Repeating it carries the same libel exposure that the original Sanders chapter on Manson and the Process carried in 1971, which is the exposure that EP Dutton settled to make go away.

The Stanley Baker conflation. The Apostle described a figure he called Stanley Baker as a member of a Process-adjacent group, convicted of murder in O’Neill Park in the Santa Ana Mountains, who carried a portable crematorium and had eaten his victim. Stanley Dean Baker was a real cannibal killer. He confessed in 1970 to murdering and partially eating James Schlosser in Montana. He was not convicted in California. The Santa Ana mountains detail belongs to a separate strand of Maury Terry’s reporting, in which a different alleged figure is connected to a different alleged crematorium. The monologue had fused two cases. The fusion is characteristic of the way satanic-panic material moves through transmission: the names attach to the most lurid available detail and the original geography drops out.

The German neo-fascist front. The Apostle reported, as background, that the Process had originally been a front for a German neo-fascist group founded by the German Democratic Party, and that Mary Ann MacLean believed herself to be the reincarnation of Joseph Goebbels and had studied Hitler’s ascension to power. The German Democratic Party — Deutsche Demokratische Partei — was a Weimar liberal party dissolved in 1933. It did not found a postwar neo-fascist front. The claim is incoherent on its face and would not survive a reader who took thirty seconds to look up the party. The Goebbels reincarnation line surfaces only in unattributed ex-member rumor and has no primary documentation. Mary Ann’s interest in figures of historical will is established. The reincarnation claim is not.

The 1999 Berkowitz epilogue. The Apostle reported that in the 1999 updated edition of The Ultimate Evil, David Berkowitz admitted membership in the Four P Movement and described witnessing German shepherd sacrifices. Berkowitz did make those statements to Terry. Whether they should be treated as evidence is a separate question. Post-conviction Berkowitz statements have been treated across mainstream true-crime scholarship as some combination of delusional, retrospective, and strategic. Berkowitz was simultaneously corresponding with Christian ministries, claiming a born-again conversion, repudiating earlier confessions, and producing new ones. The body of statements does not settle into a single coherent account. Treating any one of them as load-bearing requires either independent corroboration or a working theory of why this particular statement is more reliable than the contradictory ones it sits beside. The 1999 epilogue offers no such theory. It offers only Berkowitz’s voice and Terry’s framing.

Bruce Davis at the London headquarters. The Apostle, paraphrasing Bugliosi’s Helter Skelter, reported that Manson Family member Bruce Davis had visited the Process Church London headquarters and the London Scientology headquarters in 1968. Davis was demonstrably in London during this period, working in some capacity for Scientology, and Bugliosi did note the proximity. No primary document places Davis inside a Process meeting. The visit is plausible. The visit is unproven. The Apostle, like most secondary repeaters of this material, did not distinguish between proximity and visit.

The pattern across all five corrections is consistent. The Apostle was not making things up. He was reciting, faithfully, what the Process literature itself recites about its own contested history. The recitation has become so smooth across decades of repetition that the seams between what is documented and what is inherited do not show inside the monologue. They only show under audit.

The Five Citations That May Not Exist

The most disorienting finding of the audit was not in any of the contested claims. It was in the source apparatus itself. Five works the Apostle cited, in some cases at length, could not be confirmed to exist against any archive, library catalog, film database, or live URL.

The Initial Sketch for an Autobiography by Robert de Grimston, from which the Apostle quoted the most powerful primary-source passage in the entire monologue, does not surface in the Princeton finding aid that holds the de Grimston papers, in the Feral House catalog of Process-related publications, in Wyllie’s bibliography, or in any archive I was able to query. The passage may be authentic and the manuscript may exist in private hands. It may also be a paraphrase of something Wyllie reported or a misattribution. Without the manuscript, the passage cannot be verified, and the Apostle’s most rhetorically effective evidence rests on a citation no one can check.

William Morrison’s video The Process: The Product, which the Apostle cited as a touchstone of the 1990s Process revival, returns no IMDb entry, no Vimeo or YouTube trace, no Discogs listing under the title, and no academic citation. A video by that title may have existed. It may be a misremembering of a different Morrison project. It cannot, at present, be located.

The essay Fear and Loathing on the Internet, Reddit Part One, which the Apostle named as a key online treatment of the Process, returns no identifiable thread, no archived blog post, and no preserved essay matching the title. The phrase reads like a forum post that has either been deleted or that exists somewhere I do not know how to query.

The website process.org, which the Apostle treated as a current Process presence, requires a live check before any reader is sent there, since URLs that hold meaning to insiders go dark routinely without notice.

Joseph Matheny, whom the Apostle named as a Process commentator, is a real figure. He has worked extensively in the transmedia and ARG space and has commented on a number of fringe religious movements. The specific Process commentary the Apostle attributed to him does not surface in his bibliography.

The pattern, taken together, is the most interesting feature of the monologue. The Apostle was not citing primary sources. He was citing other people’s citations, and those other people had been citing other people’s citations, and somewhere in the chain a manuscript or a video or an essay had been mentioned in passing, and the mention had hardened into a load-bearing source by the time it reached the Apostle’s transcription tool. The five unverifiable citations are not lies. They are the residue of a fifty-year game of telephone.

The Sanders to Terry to Levenda Chain

The defenders of the Process and the prosecutors of the Process are reading from the same library. This is the part of the audit the Apostle would not have wanted me to put at the center of the piece, because it complicates his project as much as it complicates Maury Terry’s.

The library begins with Ed Sanders. The 1971 first edition of The Family, Sanders’s investigation of the Tate-LaBianca murders, included a chapter that argued the Process Church had operated in Los Angeles in early 1968 and had exerted some kind of influence on the Manson Family. The chapter quoted from de Grimston’s Jehovah on War, drew geographic links between Process locations and Manson Family residences in Topanga Canyon, and speculated about a possible Process influence on Sirhan Sirhan. The Process sued for libel. The British case the Process won outright. The American settlement with EP Dutton came in early 1972 and resulted in the chapter being excised from subsequent editions. The legal record is the cleanest documentation that exists of what the chapter actually claimed, since the original chapter is now scarce.

Maury Terry’s The Ultimate Evil, published in 1987, drew on Sanders as both source and advisor. Terry’s contribution was to extend Sanders’s Manson thesis into a Son of Sam thesis: the proposition that Berkowitz had not acted alone, that the .44-caliber shootings had been executed by a cell linked to a Process-derived organization Terry called the Four P Movement, and that the cell had connections to the Untermyer Park dog killings, to Stanford Memorial Church, and ultimately to a national network of ritual violence. Terry inherited from Sanders not just the thesis but the structural move: take a documented organization with a real history, apply the available primary documents in a maximalist way, and where the documents run out, fill the gap with informant testimony and circumstantial proximity. The 1999 epilogue extended the move further, by incorporating Berkowitz’s post-conviction statements as if they were corroborating evidence rather than products of the same thesis Terry had built around them.

Peter Levenda’s Sinister Forces trilogy, the first volume of which appeared in 2005, inherited the Sanders-Terry frame and extended it into a synthetic occult history of postwar America in which the Process recurs as a connecting node. Levenda is a more careful writer than Terry. He is also working with the same primary documents Terry was working with, plus the secondary literature Terry’s book had spawned in the intervening eighteen years. Each link in the chain inherits the prior link’s framework and adds to it, and at no point does any later link return to the original primary documents to ask whether the framework was load-bearing in the first place.

The Reddit-era Process revival, which is where the Apostle’s monologue lives, is the fourth link. It inherits Levenda’s synthesis, Terry’s investigation, and Sanders’s framing, and it produces both defenders and prosecutors who are using the same source apparatus. The defender’s brief is that the chain is full of holes. The prosecutor’s brief is that the chain is a coherent investigation. Neither brief tends to return to Bainbridge’s 1978 ethnography or to Wyllie’s 2009 memoir, which are the two academically and biographically reliable sources, because neither of those sources supports the dramatic claims that animate the genre. The Apostle did cite Bainbridge and Wyllie. He cited them as authority. He then proceeded to recite, downstream of them, the Sanders-Terry-Levenda material that they would not have accepted.

The Sanctuary at Kanab

The hardest fact to absorb about the Process is the one that almost no one who writes about the Process foregrounds. The same omega — Mary Ann MacLean’s circle, which by the 1980s had narrowed to a handful of people including her late-life husband Gabriel DePeyer — built the largest no-kill animal sanctuary in the United States. The sanctuary covers 3,700 acres outside Kanab, Utah. It absorbed roughly 250 dogs evacuated from Hurricane Katrina. It runs the country’s largest spay-and-neuter advocacy program. It is the operational backbone of an animal-welfare network that almost certainly includes, in its donor base and its staff, people who have no idea what their employer used to be.

The Apostle’s insistence on the Best Friends arc is not nostalgic. It is doing real work for him. The arc is what makes the rest of the defense legible. If the Process had simply dissolved in 1974, the satanic-panic literature would be the only history left, since defenders would have no positive program to point to. The Best Friends sanctuary functions, for the Apostle and for the small community of contemporary Process readers, as the organizational answer to the satanic-panic question. Whatever you think the Process was, this is what its core people built afterward, and what they built is good.

The argument is honest. It is also incomplete. The same circle of people executed both projects, and the question of whether the second project laundered the first or transcended it is not one that the existence of the second project can answer. Best Friends is good. The Process magazine’s Death Issue, which contained a written interview with Charles Manson conducted at the LA County Jail in 1969, was published by some of the same people who would later run a dog rescue. Both facts coexist. The coexistence is the substance of the question, not its resolution.

The Residue

The piece I expected to write when the Apostle’s email arrived was a satanic-panic debunking. The Process did not run Manson, did not direct Son of Sam, did not sacrifice German shepherds in Untermyer Park. The corrections are correct. They are also, by now, a small genre of true-crime journalism, and a small genre is not what an inbox-tip from a self-identified adherent ought to produce.

What the encounter actually produced was something else. The Apostle was right about the load-bearing facts and wrong about the same supporting details that the satanic-panic prosecutors were also wrong about, because both sides of the argument have been working from the same secondary chain for fifty years. The corrections that need to be made are not partisan. They run against both the Mentzer-as-Manson-II identification and against the German-Democratic-Party-as-neo-fascist-front rumor. They run against both the Berkowitz-as-Four-P-member confession and against the Best-Friends-as-pure-redemption framing. The Apostle and Maury Terry are reading the same library and have arrived at opposite verdicts because each is willing to inherit different parts of it.

What it means that this email came to a true-crime site, rather than to a religious-studies journal or to the sanctuary’s media office, is harder to say. True-crime publications have become, somewhere in the last decade, the inboxes of last resort for people whose history has been told wrong by the louder and more profitable parts of the genre. The Apostle did not write to The New Yorker. He wrote here, because the cluster of articles we have already published on the Process and the Son of Sam network and the Berkowitz letters suggested a publication that would not laugh at his transcription, and because the alternative was a Reddit thread that had already settled the question against him.

The companion to this piece is a thirty-five-claim fact-check report that walks each assertion in the Apostle’s monologue against primary sources, marks each verdict with an MHEES code, and flags the five unverifiable citations. It lives at the URL provided to the Apostle in the response email, and it is the document this article was written on top of. The report contains, among other things, the only sources I was able to confirm about Bill Mentzer’s actual conviction, the actual Stanley Dean Baker case file from Montana, and the actual organizational filings of the Foundation Faith of the Millennium prior to the Best Friends restructuring.

Whether the Apostle reads the report is up to him. Whether the satanic-panic chain that runs from Sanders to Terry to Levenda survives a generation that goes back to the primary documents is up to the next generation that writes about the Process. The library is still there. The cataloging is bad. The sanctuary at Kanab continues to take in dogs. The Process magazine archive continues to circulate among collectors. The five citations the Apostle could not verify will, in some cases, turn out to exist after all. The other cases will continue to be cited until someone notices that no one has read them.

That is the residue. A small disciplined religious movement built a coherent theology out of the ruin of its founders’ Scientology training, fractured over the question of who would lead, and ended up running an animal sanctuary larger than most state parks. A counter-history grew up around it that was almost entirely wrong about the operational claims and almost entirely right that something strange was happening, and the people who could have audited the counter-history did not, because the counter-history was more interesting to the genre that handles this kind of material than the ethnography was. A man whose name I do not know wrote in to set the record straight, and most of what he said was true, and most of what he was wrong about he had inherited from the same library his opponents were using.

The fact-check report is here. The Process Church hub article, which carries the MHEES-coded summary of the documented record, is here. The cluster of pieces on Maury Terry’s investigation, the Berkowitz letters, and the Untermyer Park dog killings is indexed on the Son of Sam hub.

The Apostle has not written back.

Frequently Asked Questions

Who emailed truecrimesarticles.com about the Process Church?
An anonymous self-identified Process Church adherent who reached the site through its contact form and submitted a long transcribed monologue defending the group's history, theology, and reincarnation as Best Friends Animal Society. The source is being treated as anonymous because the email did not come with a publication waiver and because the substance of the claims is the story rather than the identity of the messenger.
Is the Process Church the same organization as Best Friends Animal Society?
Best Friends Animal Society was restructured in 1991 at the Kanab, Utah ranch that had served as headquarters for the Process Church's successor organizations, the Foundation Faith of God and the Foundation Faith of the Millennium. The organizational lineage is a matter of record, traced by Wyllie's insider memoir and Hyde's Rolling Stone reporting. The current charitable work of Best Friends is independent of the theology that built the ranch.
Did Bill Mentzer lead a Process splinter group called the Four P Movement?
Bill Mentzer is a real person serving a life sentence for the 1983 contract murder of Cotton Club producer Roy Radin. The identification of Mentzer as Manson II and the Grand Chingón of a Process-derived Four P Movement is Maury Terry's analytical construction, repeated in The Ultimate Evil and circulated by Process commentators as if settled fact. No court has found Mentzer to be a Process member or a Four P leader. Repeating the claim without that attribution carries libel exposure.
What sources did the Process Church defender cite that could not be verified?
Five citations in the transmitted monologue could not be confirmed against any archive, library catalog, film database, or live URL: Robert de Grimston's Initial Sketch for an Autobiography, William Morrison's video The Process: The Product, the essay Fear and Loathing on the Internet Reddit Part One, the current status of process.org, and Joseph Matheny's Process commentary. The pattern of unverifiable citations is itself a finding.
How is the article evaluated against the source's claims?
Each contested claim was rated using MHEES, the six-axis evidence evaluation notation that extends the NATO Admiralty System with credibility, identification, documentation, and corroboration axes. The MHEES summary appears in the article frontmatter and is expanded in the companion fact-check report linked at the end of the piece.
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