As far as I can tell the Trump assassination attempt may be first time in history that a gun wielding assassin was located and knowingly monitored by multiple security teams for up to 10 minutes before executing his assassination attempt without any of the security people taking and proactive action or even just removing the target, the ex President of the United States in this case, off the stage to safety until the assassin was apprehended.
They couldn’t kill Trump at Mar a Lago,sooo they waited for this kid to do their job...