No Loose Ends is an achievement in Mafia III.
Requirements[]
Killed all of the Racket Bosses.
Walkthrough[]
When confronting racket bosses, you may be given the option to either kill or recruit them; simply choose kill on all of them to unlock this achievement. If you haven't wiretapped the sector where you confront the racket boss, you will not be given the recruit option and Lincoln will automatically kill them.