Carol says that Jean Claude fired 3 shots, but in the karaoke bar 2 shots were heard.
Jean Claude drops to the ground before the shooting starts then is shot in the leg. The gun men shot straight through the window at waist level and never shot low enough to shoot Jean Claude in the leg while lying flat on the floor.
In the karaoke bar, the last note sounds a second longer after the singer of the Elvis song closes his mouth.