Too sad, I enjoyed his books
On another semi related note: I had an NTSB bomb expert on my jumpseat many years ago and he debunked all the conspiracy theories on TWA 800. They had most of the pieces of the jet and it was an internal explosion beyond any doubt. He had pictures of the outward force of the blast and the general location of the origin, the fuel tank.
What I like about APC is the range of subjects brought up, I just wish Slow, Alpha, and PG would show back up to prevent the very one sided views that are dominating the landscape. I enjoyed both sides of the debate.