[Macattack]

hmm sticky situation. If you yell anything you had better be ready to shoot immediatly, cause that guy is probably going to turn around in surprise. Question is though, will he turn around in surprise, hesitate,then drop the gun when he see yours or just keep going from turning around right to shooting in one fluid motion.
My opinion is if he starts to turn around instead of immediatly dropping the gun, his [email protected]% is mine, and i think legally you should be ok. (By that i mean you might stay out of jail, but if he lives, have fun being sued alot.)