A 29-year-old police officer from Monmouth County was killed overnight in an off-duty car crash. Union Beach Police Detective Corporal Timothy Kelly Jr. was a 5-year member of the department and the son of retired Union Beach Police Sgt. Timothy Kelly Sr. His death was announced Sunday morning by Union Beach Police Chief Michael J. Woodrow. “It is with the heaviest of heart to announce the untimely passing of Detective Corporal Timothy Kelly Jr., who was tragically killed in an off-duty motor vehicle crash,” Woodrow posted to Facebook. Information on the crash was not immediately available. Wo…