 The Butler County Sheriff telling us late today, a police official told him that a Butler Township police officer was vaulted up to the roof where the shooter was perched, adding the suspect quickly turned and aimed his gun at the local officer, forcing him to retreat and fall down. Moments later, that suspect firing several shots toward Trump. Former President Trump telling the Washington Examiner that because of the shooting, he has rewritten his Republican convention speech. He says he will now call for a new effort at national unity. You're listening to ABC News.