Shreveport police investigators need some help identifying the man in the video posted here. He's responsible for damaging another vehicle parked adjacent to his at Mall St. Vincent. In the video, the man parks next to the victim's car, and is seen forcefully and purposely opening his own right rear car door, slamming it into the victim's vehicle. If you know who this man is, you're asked to call Crime Stoppers. A $300 reward is being offered for information leading to his arrest.