Kevin Weeks is a former mobster and a longtime friend and confidant to James J. Bulger, the infamous boss of the Winter Hill Gang, a crime family based out of the Winter Hill neighborhood in Somerville, Massachusetts.After his arrest and imprisonment in 1999, he became a cooperating witness. His testimony is viewed as responsible for the convictions of FBI agent John Connolly and mobster Stephen Flemmi. Since his release from prison, he has written the bestselling true crime memoir, Brutal: My Life in Whitey Bulger's Irish Mob.