Dr. Richard Moriarty, who helped create ‘Mr. Yuk’ poison warning for kids, dies at 83

Dr. Richard W. Moriarty, a retired pediatrician from Pittsburgh who helped create the bright green Mr. Yuk sticker that warns kids away from poisonous substances, has died. Moriarty passed away on Thursday, according to Jeffrey Fugh of the funeral home John A. Freyvogel Sons Inc., which is handling arrangements in Pittsburgh. Moriarty was involved in establishing and developing the Pittsburgh Poison Center, where he had served as director.