There was an episode of Magnum PI...so I was a fan..wanna make something of it?

It this episode, Magnum's pal, the helicopter pilot and buddy from the war and prison camp, had been "brainwashed" by a Communist agent while in the prison camp.
Acting on a post hypnotic suggestion, the buddy was going to use a helicopter to kill some folks but was stopped, of course, by Magnum.
Well, Magnum tracked down the villain out in the bush and had the drop on him. The BG said "If you take me in, I will go free because there is no evidence and I will be able to activate others like your friend. You cannot kill me in cold blood. It is against your laws and morals. So I win."
The closing scene was of the muzzle of Magnum's 1911 aimed at the guy...and then a boom and muzzle flash.
It wasn't the legal thing to do, but, for me, it was the moral thing to do.