I did a little checking and found out that Walker's full moniker was doodoo@hooked.net. Put that into a Google group search and it will bring up several dozen of his posts.
Following up on that, it appears that John Walker's hatred of the military runs very deep. On a newsgroup, rec.music.hip-hop, Walker (signing his name as Disciple Of The Englober), wrote: "I only caught the last few minutes of the interview (on Tom Snyder), but I do remember that she had some subtly racist things to say. Apparently, she had joined the US military earlier in her life, so this is not much of a surprise."
Walker's message is dated August 15, 1995.
Thanks for posting that information. Reading this article I was a bit concerned they seemed to know so much about what he'd done on the Internet!