PASADENA, Tex., Nov. 5 (UPI)—The police filed murder charges today against the father of an 8‐year‐old boy who was poisoned on halloween by a candy strew filled with cyanide.

The police, who had gone from door to door in this suburb of Houston, tracing the youth's trick‐or‐treat path, announced at a hastily called news conference that Ronald Clark O'Bryan, 30, was being held under $100,000 bond.

His son Timothy Mark O'Bryan died late Thursday after having eaten just one piece of candy. His father told the police at the time that the son had begged to be allowed one treat before going to bed.

“Thirty seconds after I left Tim's room, I heard him cry to me, ‘Daddy, Daddy, my stomach hurts,’ “ Mr. O'Bryan said last week. “He was in the bathroom, convulsing, vomiting and gasping, and then suddenly he Went limp.”