Was Seung-hui Cho an atheist?
I'm not sure whether Cho was an athiest or not. A vast majority of people believe in a Supreme Authority. In his suicide note, he mentions "saving the opressed, etc. etc." so he had some visions of grandeur, envisioning himself as some sort of "messiah" figure. So I am guessing he was familiar with the teachings of Jesus, Buddah. Mohammed, etc.