The worker was held up at gunpoint. He wasn't hurt, but the robber got away.
Police won't say how much money he got, but they do have surveillance video of the attack. They haven't released it, but say they are studying it. Officers used their search dogs Wednesday night around the area of the store on North Civic Drive in Walnut Creek. They also got some help from BART police, but no luck finding him. They think this is his ninth Bay Area robbery, second in Walnut Creek.
Police believe he has also attacked in Redwood City. Authorities think he is Asian or Latino, 5'6" with a stocky build.
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