The female firefighter suing the city of Tampa for discrimination could not name who was harassing her when asked to identify those co-workers by the firefighters union. Tom Gonzalez, the city’s attorney, questioned former firefighter Tanja Vidovic in federal court Tuesday in an effort to poke holes in her reports that she was discriminated against based on her gender and pregnancy and that she was retaliated against after complaining. It was the defense’s first full day questioning Vidovic in her discrimination trial in U.S. District Court.