I noticed that while going through videos last night.
The whole scene just triggers my brain to jump to a violent home invasion scenario, with the Dad coming home and catching the suspects by surprise. But then, so many things just don't add up. If this were a home invasion case, why wasn't Jayme killed as well ? You already have 2 victims...what's one more ? Also, the family didn't appear well off to me, and I can't find any criminal history that might indicate the parents sold or even used drugs. If Jayme was the target, why all this violence ? You don't kill 2 people to take a kid, and you don't hang around after you have her.
My gut just screams that this was a home invasion and that we're all missing an important piece of the puzzle...but who knows ?