A man getting out of his car to visit friends in the 200 block of Tennyson Avenue in Old Palo Alto was ordered to "Give me your wallet or I'll shoot you" in a robbery attempt shortly after 7 p.m. Saturday night.
But the robbery attempt was thwarted by timely arrival of neighbors backing a car out of a driveway.
Agent Rich Bullerjahn said when the man called for help one of the men struck him across the forehead, apparently with a gun, and the two started walking south of Bryant Street.
Bullerjahn said the man suffered a cut and a bruise, and was knocked to the ground but never lost consciousness.
The two occupants of the car followed the would-be robbers until one of the two pointed a gun at the car, when they backed up. The men then started running south on Bryant, Bullerjahn said.
Police searched the area, warning residents in a door-to-door canvass as other officers used a Mountain View canine unit to follow the men's scent. The dog lost the trail at Bryant and Seale Avenue, Bullerjahn reported.
The robbers were described as young, between 16 and 20 years old, and either Caucasian or light-skinned Hispanic, Bullerjahn said. One, described as thin and 5 feet 11 inches or 6 feet tall, wore a dark jacket and dark pants. The second was about 5 feet 6 inches and wore a black hooded sweatshirt, he said.
The victim was transported to Kaiser Hospital in Santa Clara for treatment.
Police dispatch received a call at 7:19 p.m. Details of the robbery attempt were not available until after 10 p.m., following completion of the preliminary investigation.
Interviews with the victim and the witnesses indicated the victim was just getting out of his car at the curb when the two young men approached him.
"Give me your wallet," the taller one ordered, opening his jacket to reveal a revolver. Then he repeated, "Give me your wallet or I'll shoot you."
The man called for help when he noticed the car backing out of the driveway had a partially open window, Bullerjahn said.