Regarding your last question (which wasn't directed at me

), here's something that occurred to me reading here yesterday. One of their neighbors claimed there was a party there that night which DM denied. IF this was the nosy neighbor with the drone, maybe they did see a lot of cars there, and maybe it wasn't a party. What if it was people who came to help... in the aftermath of whatever happened?
All conjecture of course, and the more people involved, the more likely someone would have talked by now. Just something that occurred to me.
(Also, apologies if that exact thing has already been mentioned, I haven't had the chance to follow this thread closely these last few days.)