You can see the "gun" (which looks like it is an "Ideal Conceal IC380") at 8:54, 8:57, and 9:01.

At 9:18 is when the actual shooting happens. You can see the guys hands together at his chest, and they're shaking like there's recoil, but you don't see the actual gun.

I'm looking at the rumble version, and have it slowed down, it's easier to notice things https://rumble.com/v6z0h9y-this-is-how-they-shot-charlie-kirk.html?e9s=src_v1_s%2Csrc_v1_s_m

And I've been looking carefully at the guy in the white baseball cap. At some points, it appears he's pointing his cell phone (?) right at Charlie Kirk's neck. Like at 9:06. Weird? Why would he do that?