This Katie chick didn't meet the would be assassin. The secret service went and took care of him. She's telling a story to the public so there was a reason to arrest him, otherwise 'the plan' could be exposed prematurely. The story she was telling today was made up, or at very least dictated to her by Trump himself. Listen to the pacing, it's exactly how he would tell a story off the cuff at one of his rallys.