A utility worker is attacked. Then police say they are forced to open fire to save themselves from a man wielding two 10-inch knives. Caught on dashcam video, it was supposed to be an open-and-shut case of attempted murder. KSLA chief investigative reporter Stacey Cameron asks the Caddo district attorney's office why that never happened. That's April 18 on KSLA News 12 at 10.