A man was traveling southbound on William Floyd Parkway in a 2008 Chevy Trailblazer when he lost control of the vehicle just north of Dawn Drive, left the roadway and overturned. The vehicle crashed into a wooded area approximately 30-feet west of the roadway at approximately 6:55 p.m.
The victim, 29, was pronounced dead at the scene by a physician assistant from the Office of the Suffolk County Medical Examiner.
The vehicle was impounded for a safety check.
Detectives are asking anyone with information about the crash to call the Seventh Squad at 631-852-8752.