This is probably a case of me missing a detail early on, but this, from the Affidavit,
It was not until emergency personnel began life saving measures that they saw blood coming from Charles’ body
makes me think differently about LE cleaning up CV's blood at the scene. It always sounded like they were being overly helpful to AC & LVD, and altering evidence in doing so. But since bleeding
started when EMTs began CPR, it sounds like it raised LE's suspicions right then. And once the body was moved, they cleaned the area to check for other evidence - which they found in the form of a "defect in the floor." JMO, but it seems much less solicitous than how I initially perceived it.