I was also thinking about the three year old and HR. The assailant(s) were not expecting the three year old, but, they were expecting to go in silently and kill HG and FR in their sleep, b/c I doubt the three year old woke up, unless it was after the assailant(s) were on their way out. I still think the assailant(s) were known to all of them and if the three year old had woke up he could have been able to tell them something about who was there that night. Some three year olds may be more verbal than others but most all would be able to remember something. If the three year old had woke up and had gotten a look at them I doubt they'd have left the three year old alive. They were probably not waiting for HR to have the baby as the due date was the 29th. I think they had planned this for that particular night. Maybe the full moon, clear skies. They'd need only natural light. Idk, it may be something else. I also think DR's double shift threw them off a bit as they'd planned for her to be asleep as well but she was still winding down at 2 a.m. from all indications and they were running out of time. There almost has to be at least two, if not three. One to go in, one to drive. There wouldn't be enough time otherwise. Just some thoughts.