I guess I'm speaking from personal experience here. I have been in the position of disposing of a body for someone else's murder. No one was going to be executed that one time, but it still would have damaged our resolve and I didn't want an entire episode happening.

I didn't do a very good job. Tried to dissolve the corpse in chemicals, but they found the skeleton.

Anyway, it's not too unusual to think that someone might want to be needlessly dramatic so as to confuse us.