"I think assassinations ... they're against international law to start with and to that effect, I think I would not have assassinated Osama bin laden but would have captured him and brought him to trial," Stein said while campaigning in Iowa over the weekend.So, the way this works is that the whole SEAL Team raid was illegal -- that's why the SEALs were inducted into the CIA for the length of time they performed the raid. Breaking the laws of other nations is the CIA's job. So the whole raid to get him was a violation of both Pakistan's laws and this 'international law' that you seem to believe exists.
Now, you could have asked Pakistan to arrest him -- but since the Paks were the ones hiding him, that would have meant that he would have mysteriously vanished. "Oops, we raided that house you told us about but he wasn't there!" Something like that.
If you wanted to be scrupulous about obeying 'international law,' then, you'd never have gotten to Bin Laden at all.
Had you, though, who would have tried him? Pakistan? A US Federal court? He was a foreign national on foreign soil throughout the planning cycle of the 9/11 attacks. Where would US courts get the authority, under 'international law,' to try him even if you could drag him before a court?
The Hague, then, I suppose.
Lex talionis is the only real international law.