Gerald Nicosia sits in the dining room of his Corte Madera home from where he says FBI documents were stolen. Alan Dep photo Police say they have no clue who stole documents - detailing the FBI's surveillance of Democratic presidential candidate John Kerry during the 1970's - from the home of Gerald Nicosia, a Corte Madera author. Last week, the Los Angeles Times broke the story that Kerry, a decorated Vietnam War veteran, had been closely monitored by FBI agents for more than a year due to his work with the Vietnam Veterans Against the War. Times reporter John...