[She'd have thought someone in military would be used to something like that, so she thinks a little less of him for that. #hitman lyfe. rude tbh.]

Yes. Before you go, can you tell me how many wounds were inflicted on the body? If there was a large amount of blood, an artery may have been severed, which would coat the murderer in blood as well.

A messy kill is either sending a message, or the word of someone inexperienced. In these circumstances, my guess would be on the latt--

[And then the voice. Pekoyama yanks her sword case off her back without drawing anything out of it.]

Where is the knife now?