Brian Thompson's killer is not a hitman? 3 reasons why experts think so

​Experts who analyzed the CCTV footage claimed that though the killer was deft in handling the gun, he might not be a trained shooter because he had to fire many shots and shooting in the calf is not a sign of a professional hire, they think. Though the killer is yet to be traced, experts feel he was not a professional hitman and probably acted out of personal vendetta.