Okay, how did I miss this before!!!

I just re-watched the episode "Red Listed" and something occurred to me.  Hightower and Lisbon are searching for a building near a pine forest that belongs to Bob Kirkland.  Van Pelt searches online and then says the following, "Nothing for Robert Kirkland... but there's a Michael Kirkland.  Owns a cabin up near Elderado State Park."

What if "Michael"Kirkland still uses this cabin from time to time?  Rosalind Harker said Roy T. smelled of pine and earth. The cabin is located near a pine-tree forest.  It would certainly explain Roy's distinct odor if he were "Michael".  Frankly, no one else on this list really has a reason to smell like pine and earth.

Another caveat: which of the remaining suspects looks most like Bob?  It is possible that Michael IS one of the other suspects and underwent major plastic surgery to change his appearance.  Unlikely, but not impossible.