Police have released the identity of the victim of an accident on Monday night in Upper Township. The Press of Atlantic City reports that 18 year-old Christopher Sack was killed Monday night when his vehicle flippedand struck a tree on Mount Pleasant Road in Tuckahoe. There were three other unidentified passengers in the vehicle at the time, who were taken to Shore Memorial Hospital. Police continue their investigation and believe alcohol or drugs were not a factor in the accident.