Rust assistant director Dave Halls was left in shock after cinematographer Halyna Hutchins was fatally shot on set. On Thursday, February 29, the filmmaker took the stand in court and emotionally testified about the moment he realized there had been a live round in the prop weapon Alec Baldwin had been given for the scene. “It wasn’t computing. My thought was that a blank round had been loaded,” he explained, before tearfully revealing Hutchins told them, “I can’t feel my legs” after being shot. Halls confessed he’d been “negligent” in checking the gun “properly” and that he wanted to take the…