Consider it an opportunity. The sooner a murder goes unsolved, the sooner this can all be over with.

[It's really not about the cleanliness of the floors, or...well, he'd be doing a whole lot of things differently, most likely.]

I see no reason to leave them a simple crime scene. But, of course - I do not interfere with trial matters. [you will absolutely hear him use these exact words during the trial, and probably like every subsequent one, to rules-lawyer his way out of all the cheating he's doing]