Well that's interesting. How does that compute with them being in bed when attacked? So much wrong information that it's hard to take anything at face value.
Though I am coming around that something hinky went on before the murders. For one, Ethan and Xana's timeline has that huge gap and their father believes they were home by midnight (I think) while LE said they got home two hours later? They left the party at 10pm and we don't know what they were up to between then and 2am.
Then you have the calls to J. I didn't think it was weird, but I actually do think Maddie calling three times in addition to Kaylee's calls is weird and indicates a rather urgent desire to get in touch with him. It almost makes me wonder if K+M found something strange / possibly illegal or embarrassing at the home when they arrived or shortly afterwards and they wanted assistance from a trusted male, but did not want law enforcement.
Any ideas what this could be?
(I do think the dog being lost is very plausible fwiw. It would also explain why a dog that had been around so much blood was soon released back to the public (hate to be morbid, and it may be an urban legend, but don't they generally not release dogs who have, uh, tasted human blood??) - he wasn't around the crime scene at all.)