actually no it does matter. The difference is in the motive. One is stupidity, the other a lot more inhumane. If it is the latter you have to consider far tougher and more active stance against Putin and his allies.
what is it with this culpability and international laws on the news? I'm going to quote Pompey here. "Stop quoting laws, we carry swords." If you really think Putin gives a **** about international law, you are sorely mistaken. And if you think the relatives and friends care about legal retribution, you are also sorely mistaken. Ask any parent who lost a child and give them two options, where they must choose one of the two proposed options, A) receive money from the murderer as a form of punishment or compensation for their loss (whatever way you want to see it) or B) see the murderer isolated from society so he can pose no further harm to society. I say to you most sensible parents will choose the latter option. No more lawyer prattle please. I'd rather see political action over legal action here. It is far more effective.
Also do these newsanchors seriously believe Russia will ever pay any damages. Heck Putin will admit his complicity when pigs fly. So don't go that road, it leads to nowhere. In this situation "to carry a big stick and speak softly" will get you a lot further, than to yell "because" or to say "Putin needs to man up", since he won't do that. His silence already speaks volume.
Seriously I dont get some of these American newsanchors in particular. Each time they speak of culpability, to me it only shows that they don't give a rats-ass for their fellow American citizen who died there. It may only be one American, but he was a human being too for goodness sake. To me Kerry really is the bigger man here than for example Candy Crowley, she really doesn't get it.