Also, in the body cam video that shows Chris first arriving to the scene. Did anyone notice that all the ceiling fans were running? So in the minute between going inside the home and letting LE/NUA in, our dude from hell potentially got her cellphone from the Lexus, turned it off, dumped it under the couch cushions and last but not the least turned on all the ceiling fans (to disperse the odor of murder, I would guess).
That was a busy one minute of activity right there.
ETA:
See at : 29:40, 38:50