The best evidence of more than one shooter is the audio signature that is consistent across multiple different recordings from multiple different locations.

First there were three muffled shots fired from Gun A and Location A, followed by about five unmuffled shots fired in a burst from Gun B at Location B, then a third gunshot fired from Gun C and Location C.

After that about ten seconds go by, and then there is a fourth shot, which appears to be the sniper counter-shot that killed Crooks.

The difference between Gun A and Gun B is very distinct (muffled/unmuffled, different pitch) and the different timing in the echo suggests different locations.

The first three muffled shots all appear to have been at Trump, and the second burst appear to have been more in his general direction, hitting the crowd.

The body on the roof (probably Crooks) only had one gun beside it so it doesn’t seem likely that he could have fired two different guns.

I know they say there were eight shell casings near Crooks, but I believe that is a lie. First because Cheatle refused to commit to an initial number, and second because when they did first answer, they used vague language: the area, the vicinity.