When federal prosecutors start interviewing notorious Mafia turncoats to decode a social media post made of beach seashells, you know a case has drifted into surreal territory. Court filings released in July 2026 revealed a staggering detail about the Justice Department's prosecution of former FBI Director James Comey. Investigators actually consulted Salvatore "Sammy the Bull" Gravano—the infamous former Gambino crime family underboss turned government cooperator—to prove that a specific numeric combination implied murder.
It did not work. In fact, it blew up in their faces.
The Shell Game Behind the Comey Indictment
The legal battle stems from an Instagram post Comey shared. While walking on a North Carolina beach, he photographed seashells arranged to spell out "86 47". Federal prosecutors argued this was an explicit threat against Donald Trump, asserting that "86" serves as slang for murder and "47" signifies the president.
To substantiate this unique theory, the FBI and Justice Department scrambled for linguistic validation. They didn't just look at standard dictionaries; they dug through historical mafia archives and interviewed old mob figures. That is how agents ended up sitting down with Sammy the Bull.
What Sammy the Bull Actually Told Investigators
You would think a mobster who admitted to participating in 19 murders might validate dark underworld jargon. Instead, Gravano shut the theory down.
According to defense filings, Gravano told federal interviewers that real gangsters would never use "86" in that explicit fashion because it is far too obvious. Rather than backing up the government's narrative, Gravano pointed investigators elsewhere, suggesting they talk to veteran mob prosecutor John Gleeson.
When Comey's defense team subsequently reached out to Gleeson, his assessment was scathing. Gleeson filed an affidavit calling the notion that "86" is mafia terminology for killing "preposterous" and noting that in thousands of hours of debriefing actual mobsters, he had never encountered such usage.
Desperate Measures and Digital Databases
The reliance on Gravano wasn't an isolated anomaly; it mirrored the broader panic of an investigation grasping at straws. The same court filings exposed a trail of internal friction and unorthodox tactics:
- AI Fact-Checking: Agents reportedly turned to artificial intelligence tools to see if "86" checked out as mafia slang, only for the tool to label the concept an urban legend.
- Warrantless Tracking: Prosecutors utilized emergency cell-phone tracking to monitor Comey's drive up Interstate 95, despite internal memos warning that doing so without an imminent threat to life or limb was a poor legal decision.
- Scouring Old Files: Investigators combed through decades-old organized crime cases from Comey's early days as a federal prosecutor to find hidden familiarity with the term, turning up empty-handed.
Comey's lawyers have leaned heavily on these revelations to push for a complete dismissal, citing selective and vindictive prosecution driven by political animus. As the case heads toward a scheduled fall trial, the decision to bring a mafia killer into the evidence-gathering phase stands out as a glaring miscalculation. When your key underworld witness tells you your theory makes no sense, it is usually time to rethink the charges.
Feds relied on notorious mobster to build seashell case against Comey
This video provides an overview of how federal investigators relied on a former mobster to build their case surrounding James Comey's seashell post.
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