Authorities would like to catch a man they believe is responsible for at least two bank robberies in Plymouth in Amador County and Sacramento last month. The first robbery took place at the Bank of Lodi on Main Street in Plymouth on December 8, 2006. The second at Washington Mutual Bank at 8,859 Madison Avenue in Sacramento on December 29, 2006. In each case, the individual waits in line for a bank teller, approaches the teller and shows a note demanding money. In the Plymouth crime, the note referred to a gun, although in neither case was a weapon displayed. Surveillance camera photos show the robber is a white man in his late 20s to early 30s. He is about 5 feet, 8-11 inches tall with a medium build. Witnesses describe his hair as blonde or light brown and he is clean-shaven. He has no visible scars, tattoos or other identifying marks.  Anyone with information regarding the robberies is asked to contact the FBI at (916) 481-9110, Amador County Sheriff's Department at (209) 223-6500 or Crime Alert at (916) 443-HELP.  Callers do not have to give their name and could be eligible for a reward up to $1,000.\