in the impact segment tonight, the fallout from the walter scott shooting in south carolina, police dash cam footage shows what started as a normal looking traffic stop. >> let's start with your license. the reason for your stop is your third brake light is out. >> moments later while officer slager check mrs. scott's license in his patrol car scott exits his vehicle. you have got to stay in the car. >> scott gets back in but shortly afterward he bolts eventually leading to the deadly confrontation. >> the evidence against officer slager appears overwhelming, but geraldo rivera thinks otherwise and he joins me now. geraldogeraldo, taillight, a man is dead. why is it not murder?