Jack Dragnet 

An early-20th-centry undercover government agent who posed as a crime-boss in order to obtain enough evidence to make widespread arrests of underworld characters.

To this day it is unclear who murdered Bugsy Siegel, but it is rumored that Jack Dragnet might have had something to do with it, possibly in the course of one of his infamous raids or sting-operations.

Jack Dragnet by QuacksO November 8, 2019