The Great Zodiac Killer Hoax - Thomas Henry Horan

This route preserves the correction packet exactly as a research audit object. “Correction file” means the proposition warranted controlled review; it does not automatically mean the episode or speaker was false.

EXACT WORDING STATUS

Three Spreaker objects recovered across 2018, 2021, and 2026; public transcript on 2026 object

CURRENT STATUS

Historical-source and thesis-attribution packet.

DOCUMENTARY CORE

The FBI Vault preserves seven parts of Zodiac records. The episode description presents Horan’s hoax thesis, which must be attributed to him and tested claim by claim against case files.

UNSUPPORTED OR INCOMPLETE ADDITION — AUDIT DESCRIPTION

A book thesis about letters, phone calls, and unrelated murders can be rendered as established fact if source attribution is omitted.

REQUIRED RECORD / NEXT PROOF TARGET

Exact 2026 audio, historical objects, FBI Vault files, local police files, handwriting/forensic reports, and responses from relevant investigators or scholars.

OPR-PUB-0422 // P3

2026-01-21 · Spreaker / Podcast Republic crosswalk
OPEN MATCHED PLATFORM SOURCE ↗

RECOVERED DIRECT CAPTURE — TITLE / PROVENANCE SCOPE

Exact controlled title string is visibly present on the preserved first-party historical Blogspot capture. OPEN EXACT CAPTURE PAGE ↗
This bridge controls title/provenance only; it does not establish byte-identical audio, speaker wording, or the truth of substantive claims.

PROPOSITION-LEVEL CONTROLS

CLAIM UNIT	CURRENT SUPPORT	SOURCE TIER	STATUS	NEXT EVIDENCE
Guest thesis	The hoax thesis is attributable to Thomas Henry Horan and must remain attributed	Author/guest thesis	Attribution supported	Exact audio and cited book passages
Primary-record core	FBI Vault preserves multiple parts of Zodiac-related records	Primary government archive	Record corpus supported	Relevant file parts and local agency records
Letter and call propositions	Authenticity and authorship of specific letters or calls require item-level evidence	Forensic question	Open	Original evidence, handwriting, linguistic, and chain records
Homicide-link proposition	Whether separate homicides had one offender cannot be resolved from title or generalized thesis	Unresolved	Open	Case-specific local records
Host additions	Host endorsement, qualification, or expansion has not been isolated	Unresolved	Open	Speaker-separated transcript
Open questions	Each claimed hoax mechanism and alternative actor requires a separate source test	Unresolved	Open	Claim-evidence matrix

EVIDENCE LIMIT: risk color and packet inclusion are triage controls. A confirmed contradiction requires a precise proposition and a source whose scope directly reaches that proposition. Intent or deliberate disinformation requires additional evidence.