Sebastian Bryant Hahn, 23 is armed with a 12 gauge shotgun. He was last seen at 944 Community House Road wearing boxer shorts. Call 911 immediately if you see him.UPDATE: Hahn has been captured and is in custody.UPDATE: State Patrol helicopters are on the way.He assaulted his grandfather at approximately 11:30 this morning. He was armed with an ax, dropped it and grabbed the shotgun. He has known mental issues. A large manhunt is underway including the use of a drone and tracking dogs. Do not approach him, call authorities or 911 immediately.