And possibly the connection is a legal, legit business;
What if the common denominator is an employee where they buy their disposable cell phones (or the place where they recharge the minutes on those phones with cash)?
or
Everyone seems to have tattoos- what if the common denominator is an employee at tattoo shop where they all frequent?
or...
What if it's an employee at a no-tell motel where they all frequent?
The possibilities appear to be endless but if we truly consider that these are simple-minded thugs who don't deviate much from the same simple routines then we can see that there is actually only a short list of possible common connections between them.
Seriously, think about the short list of activities on their agenda;
Eat, sleep, do drugs, drink alcohol, hang out on the streets, have sex, recruit new girls, pimp out girls, steal stuff, vandalize stuff, buy stuff, sell stuff, get tattoos, make phone calls, scope out the competition, harass the competition, kill the competition, harass or kill innocent people for the fun of it, hide the people they kill, defend themselves, seek revenge for themselves, go to clubs, go to private parties, throw private parties, pay their rent, get arrested, serve time in jail/prison, prepare/plan some of these activities...
It's not like their daily/weekly/monthly itinerary deviates much from this.
Now the question is, who are the common denominators who they come in contact with when they do these activities that also might be someone who came in contact with any of the other victims or associates of the other victims?
For instance, someone on the INSIDE of their world. Someone who would have known that the girls were escorts, known where/when they did most of the activities listed and most important, someone each of the girls would have trusted. That INSIDER may not be the killer(s) either but he might be associated with someone who is.
