I had wondered what had happened to that guy. I really enjoyed those books, but I got the sense that he rather went off the deep end.
Initially, I recall his writing career went on hold over disagreements with the publisher on sales. Then there was a lot of drama with girlfriends, child custody, their ex’s, medical issues, etc. that I read about on one of his blogs. He also apparently went blind in one eye from macular degeneration. I’d about given up on him ever writing any more books, and his new book appears to only be avail as an ebook directly from him at fsand.com.