This is the guy who ruined Halloween in 1974. I actually remember this happening, and I was just a wee snipe.
I remember that one. Poisoned his own kids pixie sticks or something.
The trick or treating really dropped off after the Tylenol poisoning though (for some reason).
They were already x-raying candy at the police station prior to this. In the late sixties, stories of drug tainted candy and popcorn balls featuring razor blades were all over. It was the Manson era.