NEW: Security footage from the WHCA Dinner appears to show a K9 flagging Cole Allen as suspicious moments before the alleged attack, only for the dog to be pulled back by its handler. Seconds later, Allen allegedly charges through security with a shotgun in hand, shoots a Secret Service agent, and is tackled before reaching President Trump.
NEW: Security footage from the WHCA Dinner appears to show a K9 flagging Cole Allen as suspicious moments before the alleged attack, only for the dog to be pulled back by its handler. Seconds later, Allen allegedly charges through security with a shotgun in hand, shoots a Secret Service agent, and is tackled before reaching President Trump.
