He hid his vehicle telling a neighbor he was hiding it from a family member. When did he ask to leave his Tahoe there? in reality was he hiding it from LE? Did he truly plan to take everyone to the ranch or did he intend to harm some victims while taking others with him to harm later or was the intention to take out as many people as possible, hence more victims were invited from outside the family?
That is ultimately what I believe happened. I hope we hear otherwise.Or had he already killed one or more of the others, perhaps tied up anyone left, and then went back to assault the girls and kill them?