He might be an AMA reader.

For YEARS, I have supported the use of Nitrogen Asphyxiation. I supported it before I had a blog, I supported it before I had had broadband, and my standard reference is always me passing out as a teen while screwing around with helium. So maybe I am partly (hopefully) responsible for this punks death. Good riddance, and I’m sorry if I gave him the idea of using a noble gas to kill himself, because it’s a far more kind end than he deserved apparently.