Oh yeah...McVeigh and Kaczynski actually killed people first-hand, and managed to get trials.
And I had addressed this point but you seem to have ignored it. He was not in a location that made capture or arrest possible, they were. Simple as that. You hid in a nation that we cannot go into and get you and then proceed to actively engage hostilities against our nation you will be stopped. PERIOD.
It seems to me that you are all missing the fact that he was actively engaging in acts against the nation. I guess that if he were launching missiles over here we would simply have to take it right? After all, he needs a trial. Sorry but the military does not work that way. I don't care if the bombs come in the form of a rocket or a pair of underwear, they amount to the same thing and require the same actions. IF the individual is in a location that allows for capture with acceptable risks, we capture. If he is not, we kill. There is no way around that. What the hell do you expect our military to do in these situations where capture simply is not feasible?