Updated: Thursday, 04 Apr 2013, 11:42 PM EDTPublished : Thursday, 04 Apr 2013, 11:53 AM EDT SOUTH KINGSTOWN, R.I. (WPRI) - A lockdown at the University of Rhode Island's Kingston campus was lifted at 2:15 p.m. Thursday afternoon, about three hours after police first received a report of a gunman inside the school's Chafee Hall. R.I. State Police Col. Steven O'Donnell told WPRI.com investigators believe there was never a gun or an active shooter at URI, but he said they did recover a Nerf gun during a room-by-room search of Chafee Hall. It wasn't clear whether the Nerf gun was related. "There is no evidence at all to indicate there was a firearm on campus at any time, and there is no evidence to support that there was an active shooter at anytime," O'Donnell said shortly before the lockdown was lifted. "We want to make sure that's clear." URI canceled classes on the Kingston campus for the remainder of the day and said classes will r...