The Executioner ran the PhD, which stands for Phreak/Hack Destroyers. He has written some philes in the Phrack Magazine.
He claims to be wealthy and that Phreak Klass 2600 is the best bulletin board on this side of the galaxy.
http://phrack.org/issues/12/3.html#article
http://www.phrack.org/author_The%20Executioner.html