BBM.
I have long held the theory that serial killers can hide in plain sight in the BDSM scene due to the nature of a culture that promotes tolerance towards some of the "
edgier" violent themes. What I refer to as "
Outliers" (
i.e., those who make up less than 1% of the scene). And, in this case I suggested a
possible scenario, back in 2011, excerpted here to save some time.
Outlier
The outlier frequents the sex scene where he identifies and cases his marks. This sort would also follow his victims after the party, at which point he abducts them. The biggest problem with this scenario is, how does he get them to come with them? While he could use a cop ruse, I'm envisioning more of a blitz attack. Imo, that sort of thing would fit more with his psyche... the overpowering bit.
The outlier is pretty much non-descript. In other words, those in the scene rarely realize he exists. One might even characterize him as a chameleon but he's not that either. If the killer turns out to be the outlier, people in the scene will remember him after the fact. Outliers don't truly fit in the scene. They aren't really part of it. They're just there bc they have a better chance at going undetected. Importantly, the outlier is a sexual sadist and they regularly engage in illegal and often sexually violent criminal behavior. Hence, their choice for the scene for their cover.
In this scenario, and in the context of this case, the guy will try to keep his victims alive for a protracted period. Importantly, murder may not be his end goal. They could have succumbed to whatever torture he visited upon them. That, or, if/when he grew bored, he murdered them and disposed of their bodies. Since all four of the GB4 died from homicidal asphyxiation, specifically, strangulation, and since it appears a garrote was used ( link ), it is possible this guy is into breath play ( link ) and that they eventually died as a result of that. His motive for calling the families is to prolong the charge he got out of torturing and murdering the girls, by visiting pain upon their families. As with the rent-a-cop, the outlier views them as less than human. But again, his underlying motive differs.
That said, while I think the outlier theory is plausible, as a few "
solved" serial cases have born out,I am doubtful this is what we're looking at. I raise it again to suggest that if these killings involve a scene related serial killer,
they would lurk on the fringes of the scene as opposed to being publicly identifiable (
i.e., vendetta guy).