Police say a man has confessed to fatally stabbing a bus driver in Brooklyn.Officials say 20-year-old Horace Moore was arrested after he was identified by witnesses in a lineup. Moore was taken in for questioning Monday night after he was located at his girlfriend's apartment.Police say Moore killed 46-year-old Edwin Thomas on a B-46 bus Monday afternoon on Malcolm X Boulevard. According to police, Moore swiped an invalid fare card and tried to sit down. When Thomas told Moore he didn't pay for the ride and was unable to get a transfer, police say Moore punched Thomas in the head and stabbed him in the torso.