Show me a log splitter or wood chipper that can be used to kill dozens of people in five ten minutes.
Machete you're still probably only get a few.
Drone? Not unless you strap an explosive to it.
A car is the only one that can even remotely cause mass casualties.
"Just as safe" is an extremely bad faith argument if you even have a basic understanding of guns. Even accidentally, when is the last news story where a five year old Suzy accidentally threw her brother Tommy in a chipper.
I'm way too lazy to watch, but did he cover a low charge bullet and/or dirty barrel? I don't know about rifles, but an uncleaned handgun can throw a bullet sideways and all sorts of weird shit.
I'm a big fan of simple explanations. Which is it was the kid and something weird happened.
"Puts on conspiracy hat" The next option would be a foreign actor (Russia or Israel probably) pulled off a crazy complicated operation to show trump they could get to his friends. But it's extremely unlikely there was no evidence of the kid being manipulated and "helped". Unless the FBI is covering it up, but then why wouldn't they also fudge the other evidence?
"Down the rabbit hole" If you go full tinfoil hat, assume Trump's ear shooting was a setup by him for votes. (There's a lot of goofy shit in those videos) Then him and Kirk decide to do it, to get Kirk national recognition and set him up as Trump's successor. But the bullet misses, shit happens, instead of just hitting his shoulder or whatever; bam dead Kirk.
I still find one the simplest explanation, but who knows