I'm sad to deliver this news. I thought I should post here since a fair amount of people on mapcore have worked with him in the past. He's worked on countless mods including Ham and Jam, The Trenches and Firearms|Source.
He was a great guy and was always there to lighten the tone during voice meetings for the games. One of the most entertaining guys on the team too. He was really fun to work with.
One of my favorite memories is him and me constantly harping about how Doom and Doom2 are still the best FPSes ever made.
There is some more information about his passing here: