BAY POINT -- A woman found fatally shot in a driveway on a cul de sac just off Port Chicago Highway was identified Thursday as 25-year-old Samantha Holderman of Antioch.

Contra Costa Sheriff's Office deputies found Holderman in the driveway of a home in the 400 block of Clifford Court at about 11:49 p.m. Tuesday, Sheriff's Office spokesman Jimmy Lee said. Where the woman was wounded and any details behind the shooting have not been released.

An autopsy on the body was conducted Thursday, Lee said, and investigators are still using clues to piece together what happened. The cause of death remains undetermined, pending toxicology tests.

Anyone with any information is asked to call the Office of the Sheriff at (925) 313-2600. Anonymous tips can be left at (866) 846-3592.

Rick Hurd covers crime. Contact him in Antioch at 925-779-7186 and follow him at Twitter.com/3rdERH.