One moment, a man reaches into his vehicle after a South Carolina trooper asked for his driver's license.Seconds later, the trooper shoots him, and the man asks why. Days afterward, prosecutors aren't satisfied with the answer.Authorities released dash-camera video Wednesday showing what they say is Sean Groubert, a decorated South Carolina Highway Patrol trooper, shooting Levar Jones, who was unarmed, in the parking lot of a gas station just outside Columbia on September 4. Groubert said Jones dove head first back into his car so he expected him to pull a gun, but in his defense Jones did kinda dive back into the car.