The FBI is offering up to $10,000 for information leading to the arrest and conviction of someone who violently robbed jewelry stores in three states and might live or have connections in San Francisco. The robber has stolen more than $150,000 worth of jewelry from stores in Oregon, California and Nevada between June and October 2007, according to the FBI. Witnesses described the suspect as a white man in his 20s who is about 5 feet 10 inches to 6 feet tall, 160 to 180 pounds with a medium build and dark hair. Anyone with information is asked to call the FBI in Portland, Ore., at (503) 224-4181 or the Eugene (Ore.) Police Department at (541) 682-5175.