Reading through some of the latest posts, here, I have been wondering how the perp(s) gained entrance to the home. I believe we know there was no forced entry, so we must consider different scenarios.
1) one of the Dermonds opened the door, and either asked them in, or the perp(s) pushed their way in. If they asked them in, it would mean they were known to the Dermonds.
2) one of the Dermonds was outside the home and the perp(s) forced them back into the house.
Since they lived in a gated community, they may have felt safe answering the door, even though they didn’t recognize the visitors.
Any other thoughts?
IMHO