I agree.Imo... Killing...even if done for a total justifiable reason...is not easy...nor is it enjoyable. Not after the fact anyway. And..its not something to brag about.
I had some contractors at my house. They talked about a nephew who signed up to go to Iraq. A sharp shooter who was going to be a sniper, from the hills of PA.
At his going away party, with family and friends, someone asked, what do you want to to do there ?
He said, in a very serious way, kill people. People started to laugh.
The uncles told me he was dead serious, and he meant it.
Better they do it in service to the country against a genuine enemy than be out on the streets in service to a gang.
Did you not see that his justification/rationalization for killing was less people to kill our people, and to save lives. I am not sure that there was any joy about killing other then to save our lives that he was talking about. Glad he is on our side.