That is what I'm thinking. Plus BG left the phone where his alibi was no tracking it. Plus I think BG had a burner phone so he could be in contact. Also thinking motive is either one of the girls was sexually assaulted or knew about drug sales/use and was going to come forward and 'tell' or was pregnant and keeping baby. I think it was likely that they were killed to silence them. I think BG knew his life was ruined (or his son's life) if the truth came out. The perp may have had military or law enforcement aspirations and knew is future was over if the truth came out. Just a thought.