It's not you that is the problem kid. It's whatever you may have seen or broadcast without realizing it that is the temptation. Unless they're so certain it borders on arrogance that they didn't leave anything behind that could oust them anyone who kills another and does so in hopes of not getting caught are always on guard that they may have left a clue that could be found.

[Don't think she doesn't see that eye rolling there Marco. She's dealt with two teenagers for months now and thus knows what that means with your kind.]

Too many theories without any leads to follow, no thanks to the lack of a crime team. Could be personal, business, or just random coincidence if you believe in such. Someone even told me there's a merc group here that makes new recruits commit murder before allowing them to join. Won't know unless a pattern of trophies being taken shows up if that is how they prove their kills that is. A lot of reasons to kill even when you're not in a war.