Stephen Joseph "The Rifleman" Flemmi (born June 9, 1934) is an Italian-American gangster and close associate of Winter Hill Gang boss Whitey Bulger.
Beginning in 1975, Flemmi was a top echelon informant for the Federal Bureau of Investigation (FBI).
Despite delivering a great deal of intelligence about the inner workings of the Patriarca crime family, Flemmi's own criminal activities proved a public relations nightmare for the FBI.
He was ultimately brought up on charges under the Racketeer Influenced and Corrupt Organizations Act (RICO), and pleaded guilty in return for a sentence of life in prison.
Author: Photograph taken by a Federal Bureau of Prisons employee. Source: This image was copied from wikipedia:en. The original description was: Mugshot taken of w:en:Stephen Flemmi whilst serving time at a Federal prison. Photograph taken by a Federal Bureau of Prisons employee. License: PD US DOJ