Good call, guys. I appreciate it. You know your music.
Johnny Ace:
The story goes, he was backstage "playing" with a gun at City Auditorium when Willie Mae "Big Mama" Thornton took it away from him and removed the single bullet that was loaded into it. After he continued to insist that she return the gun to him, she did, but it seems he hadn't realized she'd put the bullet back in it.
A few minutes later, after putting the gun to the head of a young female groupie and pulling the trigger, he then did the same to himself and that was the finishing act.