The latest on the Trump assassination attempt investigation CNNA shooting range, a gun store, and a ladder purchase: Tracking the Trump rally gunman’s movements leading up to his attack CNNLive Updates: Trump rally shooting investigation continues as new details emerge about assassination attempt CBS NewsPolice were warned of Trump rally shooter at least 86 seconds before gunfire, video shows The Washington PostThomas Matthew Crooks: What we know about Donald Trump’s attacker BBC.com