He faxed a 23-page rant to ABC, and they're publishing some of it.

http://abcnews.go.com/US/shooting-al...ry?id=33336339

In one part of the document, Williams calls it a “Suicide Note for Friends and Family.”

—He says has suffered racial discrimination, sexual harassment and bullying at work.

—He says he has been attacked by black men and white females.

—He talks about how he was attacked for being a gay, black man

“Yes, it will sound like I am angry...I am. And I have every right to be. But when I leave this Earth, the only emotion I want to feel is peace....”

“The church shooting was the tipping point…but my anger has been building steadily...I’ve been a human powder keg for a while…just waiting to go BOOM!!!!”.

Later in the manifesto, the writer quotes the Virginia Tech mass killer, Seung Hui Cho, calls him “his boy,” and expresses admiration for the Columbine High School killers. “Also, I was influenced by Seung–Hui Cho. That’s my boy right there. He got NEARLY double the amount that Eric Harris and Dylann Klebold got…just sayin.'"
It seems like our fascination with these people and the deluge of media coverage perpetuates this. He was inspired by these mass murderers, made a martyr of himself, and will become a morbid sort of icon himself.