A suspect who attacked a Good Samaritan and then carjacked her beige Mercedes SUV at gunpoint was still at large Sunday.
The suspect told the victim that she needed help getting to her mother's house in San Pablo, according to police.
The victim was not injured, police said.
A woman was getting into her SUV in the 1900 block of San Pablo Avenue Friday evening when she was approached by the suspect, according to police Commander Pete Janke.
The suspect told the woman her car had broken down, and pointed to a nearby parked vehicle.
She then asked the victim to give her a ride to her mother's house in unincorporated San Pablo, Janke said.
The victim agreed and the two drove around Pinole for around 30 minutes, while the victim became increasingly suspicious that the suspect was giving her false information about where they were going, Janke said.
The victim finally stopped her car to ask help from a resident in the 1000 block of Marlesta Road, when the suspect pulled out a pistol, ordered the victim out of the 2001 Mercedes and punched her in the face, police said.
She then kicked the victim before driving off east on Marlesta Road toward Appian Way, the commander said.
The suspect is a Latina about 25 years old, 5 feet 1 to 5 feet 5 inches tall, and weighs 110 pounds.
She wore her dark hair in a ponytail and was wearing a black sweater and dark pants.
The suspect told the victim her name was Jessica; The stolen vehicle is a beige Mercedes ML320 with a California license plate of 5EWU199.
Anyone with information should call Detective Jason Takacs at 510 724-8944.