How Las Vegas gunman might have turned a rifle into a rapid fire weapon

By one estimate, Las Vegas shooter Stephen Paddock fired off as many as nine rounds per second. Police now say at least one of his rifles was outfitted with a bump stock, a device that could turn it into a rapidfire weapon. Carter Evans has more. Subscribe to the CBS Evening News Channel HERE: Watch Full Episodes of the CBS Evening News HERE: Watch the latest installment of On the Road, only on the CBS Evening News, HERE: Follow