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U.S. Marshal Jailed for Leaking Witness Protection Info on Hit Man Nicholas Calabrese

Thursday, October 29, 2009 at 9:04 am
Nicholas-Calabrese.jpg
Ambrose provided information on Nicholas Calabrese (above), a confessed hit man in the witness protection program
​The FBI knew they had a problem when they listened to secret tapes of Chicago Mafiosi Michael and James Marcello talking in a prison visiting room about a "baby sitter" inside federal law enforcement. The "sitter" was providing info on the whereabouts of confessed hit man Nicholas Calabrese, who was in the witness protection program.

Calabrese was being held at a Chicago safe house where he waited to testify against fellow Mafiosi. And someone within the feds, the FBI learned, was helping the Mafia find the informer.

The trail led to former Chicago police officer William Guide, imprisoned on a corruption charge. And the trail from there led back to U.S.Marshal John T. Ambrose...

John-T-Ambrose.jpg
Ambrose leaked info to a former cop imprisoned for corruption
​Ambrose was kicking info on Calabrese to Guide, who was then passing it along to the mob. When agents confronted Ambrose, he claimed he was trading the info for help in hunting a fugitive. But at trial, he said none of the allegations were true, and that he was merely bragging to boost his importance.

The court wasn't buying, quite naturally. This week, Ambrose was sentenced to four years in the slam for what's believed to be the first breach of security in the witness protection program's 25-year-history.





Tags: Illinois, Mob Watch

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