Prosecutors are pursuing murder charges against 48-year-old Kenneth Patterson in the presumed death of his former girlfriend, even if her body is never found. 57-year-old Diane Corado has been missing since she and a friend were kidnapped last month from her Levittown home. Police say Patterson hit Corado with a pipe, but released her friend a short time later. Police found him and Corado’s bloody Pontiac Aztek later the same day in New Jersey. He has refused to cooperate with investigators, but Bucks County District Attorney David Heckler says they have a strong circumstantial case, and he will seek the death penalty. Patterson, of no fixed address, is being held at Bucks County Prison in lieu of $9 million bail.