NEW YORK (TIP): A man with a history of psychiatric problems beheaded his mother in her Long Island, N.Y., apartment late Tuesday, October 28 and then dragged the body and head out onto a street, where onlookers initially thought they were witnessing a macabre Halloween prank, police and witnesses said. Patricia Ward, 66, was killed inside her apartment by her son, 35-year-old Derek Ward, who jumped in front of a commuter train near the Farmingdale, N.Y., moments later, killing himself, Nassau County police said. Derek Ward was arrested previously for gun possession and criminal mischief and also had a psychiatric history going back about 10 years. Police sources told Newsday that he also had a “drug problem, apparently.” Patricia Ward was identified by Farmingdale State College as a longtime professor who taught language arts at the university.