Suffolk Police are investigating a fatal crash that happened in West Babylon on Sunday afternoon. Police say Dennis Markey and Marcus Pitts were heading southbound on Wellwood Avenue in a 2003 Chevrolet Trailblazer when the driver lost control and crashed through a fence and overturned several times. Police say both occupants weer thrown from the vehicle during the crash. 47 year old Dennis Markey, of Bay Shore, was transported to Good Samaritan Hospital Medical Center in West Islip where he was pronounced dead. 35 year old Marcus Pitts, of Freeport was airlifted to Stony Brook University Hospital in critical condition. Detectives are asking anyone with information on the crash to contact the First Squad at 631-854-8152.