Agree. It will definitely be interesting to find out more - Was he in prison for awhile? - Did he commit other murders? - Etc.
Hopefully this is the guy and they got him - Sounds like he made a big mistake dropping one of those letters off (camera's nailed him - probably the security camera in a store across the street or something like that).
He did mention that he didnt know if the killing would ever 'get out of his system,' maybe he took a 15 year vacation..