I don't think that sounds terrible at all. We can all agree, I think, that we'd rather this whole situation not happen at all, but of the two cases, one with one dead by their own hands, and another case with who knows how many dead at the same person's hands, there's absolutely nothing wrong with saying you're happy it was the former and not the latter.

Terrible would be saying he deserved it. Or putting someone in that position. Or a variety of other things, but it's not being relieved at a lower death toll.