I hate to pound the table on this, but the more I read, more I listen to (Vanished Pod Cast) and more I investigate online about the following the more closely I'm skewed to someone from the past.
I've spent the last week reading Chris Martins book on Larry DeWayne Hall. Apparently there were three accomplices mentioned at one point for a few of the vanishing women, many of whom were killed. In the book he mentioned the twin brother as being a potential accomplice in these murders, Gary Hall who's alive and well in Wabash, Indiana (39 victims to be exact). I present to you their map:
http://www.zeemaps.com/pub?group=60...e=1&shuttered=1&x=-86.375585&y=38.568330&z=13
Just search "Larry Dewayne Hall" on IPhone Podcast or google and there are 5 episodes.