Not sure.
MAGA! FAFO! Schrodinger's Cat walks into a bar, and doesn't. Dumbocraps: evil people who celebrate murder.

Do you think it is just an H.Weird thing or have you ever heard of them doing it IRL?
"Please vote to preserve the unique character of Warren…" - Robert Duvall

I don't disagree, but if they take the gun with them, and get stopped by the cops, they're dead meat.
MAGA! FAFO! Schrodinger's Cat walks into a bar, and doesn't. Dumbocraps: evil people who celebrate murder.

OK I get that but the evidence is right there and it could still perhaps lead back to the killer.
Why not toss it away in a river or bury it somewhere instead?
I suppose this could be just a H.Weird thing.
"Please vote to preserve the unique character of Warren…" - Robert Duvall

Okay then.
MAGA! FAFO! Schrodinger's Cat walks into a bar, and doesn't. Dumbocraps: evil people who celebrate murder.

I think he:s attempting humor…not very well…but at least he tries?

So that they're not found with the murder weapon in their possession.
"Leave the gun. Take the cannoli."
MAGA! FAFO! Schrodinger's Cat walks into a bar, and doesn't. Dumbocraps: evil people who celebrate murder.

I think they drop the gun to make it look to the spectator, think they still have it and to let them walk out or its a clean gun and never been used. Guns with history are never left behind as they can be used later in cases, there's even been murder cases of where victims own guns have popped up in other shootings by forensics all over the world.