>>4188497 Anon's dig so far on Tracy Hermens (claims husband was CF pornographer) (lb)
If they owned a wrecking company, I'd say that increases the chances of being involved with human trafficking by trade. I have a lot of respect for truckers - don't get me wrong, but human trafficking is closely tied to trucking and the transportation industry. It would be worth trying to find out what business ties they had, what establishments were nearby (truck stops, other garages, etc) and if Gregory had a CDL.
https://www.thetruckersreport.com/preventing-human-trafficking-how-truckers-are-fighting-the-problem/
https://sharedhope.org/trucking/
http://truckersagainsttrafficking.org/
https://www.npr.org/2017/08/12/543096708/the-trucking-industry-a-focus-on-smuggling-and-human-trafficking