The victim was taken away in a stolen SUV by a suspect armed with a sawed-off shotgun. The teenage victim's name is Hassan Ford.
The Antioch Police Department issued the alert asking motorists in seven Northern California counties to be on the lookout for a black GMC Yukon.
The SUV has a Harley Davidson sticker on the rear window and a license plate number of 4WAY944.
Anyone who sees the vehicle should contact authorities immediately.