MIDDLETOWN – A 19-year-old Middletown High School graduate was killed in a shooting Thursday night in the area of 17 Wallkill Ave., Middletown police said.Police said they responded to a report of shots fired, with a person possibly hit by the gunfire, at about 11 p.m. When they arrived at the scene, police were told that a man had been taken to a local hospital.Police were withholding the victim’s name pending notification of next of kin.