This story is such horse shit.
There aren’t that many people coming from out of town in all these cities.
If it were true they could roll them until they find out the organizers and financiers and prosecute them as well
No. It’s true. I just watched it in action at the Governors Mansion in Georgia, and they’ve done none of the basic things you suggest.
No doubt the FBI already knows about the thug network in great detail, but to prosecute might also involve exposing a few in the DS.