. >> for twenty years stan leigh has put his life on the line as a san francisco firefighter.pped under a rail car and injuring his back during this inferno four years ago. i fractured l5 and s-1. >> a 10 nebt nearly clipping him with a car and yelling racial slurs through the front door. >> leigh tells me he and his wife and young children feel like prisoners in their home. >> if we were to come home my kids would not venture out of the garage. that's how afraid i am of them. >> it started when they purchased this level with a tenant in a rent controlled unit . >> my name is daniel whitaker. >> he declined my request for an interview, but he has been very public about his battle with stan leigh. appearing at a rally last fall. >> i make pretty good money. i can probably own a house. if i had to be relocated, i don't know what i am going to do. >> at first whitaker paid his rent on time. as the years passed, some of the checks started to bounce. >> looking back now he was rate about 30% of the time. >> he finally sued for back rent. his own credit took a hit as he tried to cov