Ukraine

Yeah, I think at this point it's all speculation central. Where did you hear the guy who shot him cited "because he stopped sending arms to Ukraine" as a motive, though? I only heard talk of him citing general discontent with the government, and a quote claiming he brought up the upcoming public broadcast reforms in Slovakia so far. Genuinely interested.

One way or the other, at this point, everything still seems possible: from a useful idiot for Putin, a false flag coordinated - maybe with blackmail or something - by Russia, a mental illness, the gunman genuinely wanting to support Ukraine in a misguided way (even though it's rare, yes, 180° turns in a few years are possible, especially in unstable people), or no direct relation to the war at all in his motives - it's still impossible to tell.

I also haven't heard of the journalist that brought the connection up or VS Square before myself, so, hard to say how trustworthy they are. But it sounds to be well-cited and founded at least.