A quick search shows that it happened in October of 2013. The shooting is done by the police officer in the grey shirt. The helmet video clearly shows the officer shooting the hijacker. Note that the revolver used by the motorcycle jacker had been placed back in his pocket. The person with the helmet video is out of the line of fire by a few feet.
The officer appears to be about 15 feet from the jacker when he shoots.
The revolver used by the jacker is likely a Taurus or Rossi .38 caliber.
Link to video