Can you imagine the hustle and bustle that was going on in the Peterson home when he killed Stacy? You have 4 kids at home, who are probably used to a certain routine on Sundays. They are probably allowed free reign into the parent's bedroom typically. Mommy usually makes them something to eat or has coffee etc after she wakes up. Daddy probably comes down and tells a bunch of funny jokes.
However, that morning the kids hear them fighting. Then they hear nothing, or maybe they hear someone hitting the floor, wall or furniture.
I imagine Drew was quite active afterwards trying to figure out what he was going to do next. Possibly a little nervous only that the kids would see what had happened. He's locking doors, maybe, to keep them out of the bedroom. Or bathroom where maybe he placed her body till he could dispose of her.
He's running around finding barrels and containers and tape and maybe some kind of chemical to throw off the scent..... Geez, I can't imagine what it was like that day around there.
They had to notice something was up, but it probably didn't mean much to them because they were probably told "mommy doesn't feel well so don't bother her", then "mommy went to grandpa's".
My kids know that if my van is in the driveway, I'm usually still home....
