“They either knew from a PI following him and then questioning a previous girl on her way out, from hacking his computer, or from getting access to his ISP’s information.”
It’s not all that complicated.
The coffee shop where he picked her up is his car was on video at the time she said they were there.
The hotel’s video has the to of them in the hotel and exiting the elevator where Wilson had registered for a room.
The text messages and pictures of his package were on her phone and were sent from his phone.
Paraphrasing the question I was answering: “if they targeted him in advance, before he met up with this particular underage girl, and she was there to lure him into this crime, how did they know how to set him up?” From that perspective, my response makes sense.
From the perspective of proving he was in that hotel with this particular apparently underage prostitute, you have the facts correct.
Either way, it was a shockingly stupid thing to do. Any exceptionally slow learner who didn’t already know that prostitutes will screw their customers even after they leave should have figured it out from “Stormy” being front page news for a year. Anyone who likes the sense of danger (or whatever the appeal is) from spending private time with a girl who claims to be just barely legal should get over it, grow up, and spend that time with real adults.