Dead man a suspect .WARREN (UPI) — A former mental patient, who killed himself in a 100-mile-an-hour car crash Thursday, was the prime suspect in the beating death of his father and mother.Warren police discovered the parents of Patrick Barnes, 29, had been killed when they went to their home to notify them that Barnes died when his car slammed into a telephone poll in this Detroit suburb.Police said Barnes’ car was traveling on the wrong side of the street when it smashed into the pole.Franklin Barnes, 61, and his wife, Juanita, 60, were “bludgeoned to death with a claw hammer,” said Lt. John Welch.Police became suspicious when the traffic victim’s brother told them his father would never let “Patrick have the car.■A A M m m