Gary Banks, 30, was found in the road just after midnight on May 11 at Clarkson and 12th Avenue.
On Friday, Fresno County sheriff's officials say he was hit by several cars, but an autopsy report said he had also suffered from a gunshot wound.
The official cause of Banks' death wasn't immediately clear, and detectives are working to determine a timeline leading up to his death.
Anyone with information is asked to contact the Fresno County Sheriff's Office at 559-498-7867.
If you have information about this case, you are urged to contact Valley Crime Stoppers. You could be eligible to receive a cash reward if you provide information anonymously that leads to an arrest. To leave a tip, call 559-498-7867, or fill out the form at ABC30.com/CrimeStoppers.
EDITOR'S NOTE: The video above is from a previous broadcast.