George Steinbrenner, Snitch

Before there was the Donald, there was the Boss--George Steinbrenner, famous blowhard and ex-felon, or as his former Yankee Manager Billy Martin called him, "convicted liar."

Turns out that a FOIA request turned up documents showing that The Boss was a repeat FBI informant, a snitch.  Steinbrenner's reward, a presidential pardon.