What really concerns me is, where were they attacked and how were they removed into a vehicle, without leaving stains on the walls, floors, ceiling, soaked into upholstry and matresses, lamp shades, woodwork, trim, windows, the sidewalk and vehicle? You can't sneak up on 4 people and tidily smash their heads in, they run away, they break and throw things, they touch their wound and then touch other things leaving blood everywhere. The killer is covered with blood and leaves it everywhere.
If you leave bodies where they die, the amount of blood will be immense, if you move the bodies quickly, you will leave a trail.
This is the comment from the current case of a woman who was blindfolded and then beaten: "Inside Berreth’s home in the Colorado mountain town, she was confronted with an unthinkable scene....Her words were when she opened the door, it was horrific... there was blood everywhere. She was tasked with disposing of certain items -- including a bloody Bible and the sweater she claims Frazee used to cover Berreth’s eyes -- as well as wiping the blood off surfaces around the home."
CBI: Idaho nurse claimed Patrick Frazee fatally beat Kelsey Berreth, burned her body
She was a nurse, so experienced with creating perfectly clean environments. And she had to deal with the scene for only one victim, not for four, and for a person blindfolded before being attacked. Was CM a clean freak, would he notice every stain? Wouldn't three women cleaning the home for sale notice blood stains he'd missed?