Ronald Clark O'Bryan
Ronald Clark O'Bryan (October 19, 1944 – March 31, 1984), nicknamed The Candy Man, The Man Who Killed Halloween and The Pixy Stix Killer, was an American man convicted of killing his eight-year-old son Timothy (April 5, 1966 – October 31, 1974) on Halloween 1974 with a potassium cyanide-laced Pixy Stix that was ostensibly collected during a trick or treat outing. O'Bryan poisoned his son in order to claim life insurance money to ease his own financial troubles, as he was $100,000 in debt.