If you mean killing them as in both Shadow-san and this monster, then I may have to disagree. At least in regards to the former, if only because we have just your word on what happened and not physical evidence.

[He is not speaking in defense of Shadow though. That guy can take care of and defend himself, he doesn't need someone like Azul going to bat for him, even if he is a previous client of Azul's.]

Did you take any pictures or video by chance? Or held on to anything from this confrontation as proof that he and this creature attacked you?