A bystander to the early morning assassination of UnitedHealthcare CEO Brian Thompson said he feared he would also be shot as he witnessed the gunman fleeing the scene. 'I heard the shot, and I looked around and saw a guy with a gun,' the witness said. 'He shot three times and then he started running.' He said he was 'scared' the gunman would turn on him as he was sat nearby in his car and watched 'the whole thing.' It comes as shocking surveillance footage obtained by DailyMail.com captured the CEO's last moments as the horror shooting unfolded in the...