The only thing I wonder about is what became of the dog (poor Rosie) at the end of the day on August 7th? If they left her there in the house, then it would make sense that somebody had to go back and get her the following day. But that would not take two people. And it would not require going to the barn if the dog was in the house.
Do I recall correctly that MHG or someone else ended up calling 911 on that day, August 8th, due to their interactions with RG and JK at the barn?
I will stipulate that people can certainly do irrational things under stressful circumstances. But it certainly does not seem as if it would take two people to pick up one dog if that’s the only reason they were there. Especially with LK in the hospital at the time.