BOP, it is difficult for normal people to think like a psychopathic killer. Their motives and movements may not make sense to us because everything that was done was an evil plan developed by psychopathic murderers.
:cow: Also, as with almost every murder, not everything is relevant. By example, I want to know who was scheduled to pick up the two girls that afternoon. It may or may not be relevant to the crimes.
If I may elaborate, and this is JMO:
I like to juxtapose "psychopath" with "sociopath", in some of these awful cases. Not all "psychopaths" or even "sociopaths" are killers, but a certain % of sociopaths have a tendency towards actual violence, in all its forms, and they can be rather manipulative, even emotionally-manipulative. Some of them run factories (that i would know). Others are in any number of other capacities, in life. They are control freaks, but most (i think) are intelligent enough to mix their control freak nonsense, with some semblance of intelligence.
A sociopath, in this case could appear perfectly 'normal' after committing such horrible crimes. This has been proven in numerous cases of murderers, SK's, etc. A sociopath, even after crossing a long and unsafe bridge, could put the wheels in motion to commit the crimes in question, and be successful in carrying out such crimes. It's pre-meditated to the point where they are convinced that they will be successful.
I've seen it in business/manufacturing, as well as the military when I served on Okinawa, 20 years ago. A sociopath makes sure all of their ducks are in a line, before committing their crimes. They'll even use emotional manipulation to try and cover for their misdeeds. "No, I didn't do that", "How could you accuse ME of doing that", etc. That sort of stuff. I've seen it, but not in a murder case.
MOO is BG is hiding in plain view, and nobody in his life has come forward to connect the dots. BG was counting on various factors to carry out this crime, and they just happened to have come together, on that day.