The conspiracy might merely be that the Secret Service decided not to assign their A-team to President Trump, and hope that someone was willing to take a shot.
The SS needs to stop hiring midget females who aren't as tall, or taller as the President, and only stand to his shoulders when on tippy-toes. That is a deliberate oversight, that leaves the man vulnerable to outside attack. A second shooter could have taken him out from the front at any time, while those girls were trying to unsuccessfully cover his body completely. You're supposed to provide full shield protection like a turtle shell. That certainly wasn't the case yesterday.