Honestly, I agree with him with these things. They (plural form of it, not him, which of course is also they) can't, won't, and shouldn't go to a court of law, killing them is much better. But what I don't understand is him, is he doing this out of his own emotions? I thought he was meant to be heartless? He did try to kill FMC, but he also looked at the picture. Very mysterious indeed.
Edit: Well I should probably finish the chapter before commenting, him killing the officers just confuses me even more.