Mob Leak Trial: Witness Protection Officer Divulged Secret In Family Secrets Investigation

Chicago Tribune:
It was the secret at the heart of the Family Secrets investigation: mob hit man Nicholas Calabrese was cooperating with authorities probing dozens of gangland murders from decades earlier.

By leaking that secret to a close family friend with mob connections, Deputy U.S. Marshal John Ambrose committed a "supreme betrayal of trust," a prosecutor charged as Ambrose's trial opened Monday in federal court in Chicago.
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