Or, like the sniper who was likely told not to engage, were told to come down.
Which, to me sounds vastly more credible than "oh, hum I know we're supposed to protect the most viscerally hated person in the world, but I forgot my sandwich downstairs". Comically absurd.
@Remius perhaps you were right after all.
Anyway here's the montage we were all waiting for, incidentally showing the shooter's presence was known well in advance:
@KevinB as you said, interagency work: distrust and verify. Whether or not the USSS was officially responsible for that rooftop is irrelevant. The buck stops with them. They chose to trust blindly and close their eyes instead. People died.
Many of us on this forum have done similar work. This shit would not fly for any of us had we been in charge. I must say I grow tired of the excuses regularly made here for systems that get people killed or empty platitudes like "defense has to succeed 100% of the time, offense only 1 time", when the failure came down to such a glaring and catastrophically stupid series of "mistakes".
Blaming comms is juvie type stuff. You're the USSS, you're telling me you haven't had time to develop a functional system in the 61 years between JFK and Trump's assassinations? Because yes, for all intents and purposes, as far as the USSS is concerned, Trump has been assassinated. Saved only by the heavenly voice of Shinzo Abe, or whatever.
Take responsibility, coordinate, and implement redundancies. Put a drone up in the air, for Pete's sake, it's 2024.
No excuses.