[Extremely Extreme Extremist]

Let me guess. He shot himself several times, then dragged his own lifeless body across the room and made it look like a suicide?

[x]

A lot of people with conspiracy theories kill themselves: Steve Kangas, Gary Webb, Danny Casolaro, Michael Ruppert.

You can google even more. It's not always easy to separate out the obvious nutters from those who might have been killed by other people to keep a story secret.