How an Antioch councilmember became an FBI informant, driving latest corruption indictment

OAKLAND — In an indictment announced Tuesday, federal prosecutors accused the former owner and vice president of a Contra Costa homebuilding company of estimating how much it would take to buy an Antioch city councilmember — about $10,000.

But after they allegedly offered the cash in discreetly hidden stacks of bills, prosecutors say David Sanson and his son, Trent Sanson, underestimated the councilmember whom they expected to bribe. The politician had already gone to the FBI, authorities say.