More than anything, I think it would help to know who the other "working girl" was that SG used to "hang out with" on LI. Wonder if that person is safe and sound?
It is possible that SG befriended one of the other three victims and that any one of them could have been targeted to come in under an "organized" umbrella.
Hypothesis: What if the other prostitute was ALC and part of ALC's job was to bring in other girls or set them up with an agency's "customers." In the Daily Beast article, IIRC, it was stated that when ALC was living in Florida she was married to Mr. C. And, that there was an escort service that was listed at the same address as their home. Just saying maybe ALC went to meet with someone who held the cards and she was killed because she had somehow slipped up with her choices...one time too often.
NMight be important to note that in NO MSM has it ever been stated that DS was ALC's BF. In the Long island Press article with the photo it list her BF as BB and friend Donato. DS says he was her roommate, who had to protect her many times, drive her and "allow" her to receive calls from "clients" on HIS CELLPHONE.
So, although he did BF type things, he referred to himself as a friend who sometimes drove her to jobs and provided protection for her when she conducted business in their "home."
BB said he was her BF for several months before she went missing and the origin of his last name is UKRAINIAN...just saying he called himself her boyfriend. Now, we know that many BFs of call girls are actually their pimps. We know this was the case for MW whose BF is said to have been not only her pimp but a suspected drug dealer as well. if memory serves, MB's family has said that MB also had an ex-BF who had pressured her to stay in the business.
it is possible that these BFs, roommates, drivers/bodyguards, and drug dealers might all work for some bigger group of thugs.