Gloating at HuffPo? Check. Keith Ratliff, manager of YouTube channel FPS Russia, was found tied to a chair and shot in the back of the head three days ago. Over on the gunnie side, there's folks looking askance at the crime, finding it a bit over-timely.
I may be too cynical but I'm not seeing good odds for conspiracy, not from a Fed.gov that can't even pull off smuggling guns into Mexico without its own guys crying foul. (All due respect, but ATF agents aren't noted for much in the way of shining libertarianism.)
Meanwhile, Caleb at Gun Nuts from August, 2012, when a cameraman for FPS Russia met up with flying shrapnel from a stunt gone wrong: "The problem is that his attention to safety is non-existent, and it was only a matter of time before someone got injured during one of his idiotic stunts."
Halfwit HuffPo pseudokarma? Conspiracy? Misadventure? Unclear at this point -- and well worth keeping an eye on, however it plays out.