From The Houston Chronicle: 

Federal law enforcement officials told the Associated Press that Hasan had come to their attention at least six months ago because of Internet postings that discussed suicide bombings and other threats.

One of the Web posts that authorities reviewed is a blog that equates suicide bombers with a soldier throwing himself on a grenade to save the lives of his comrades.

“To say that this soldier committed suicide is inappropriate. Its more appropriate to say he is a brave hero that sacrificed his life for a more noble cause,” said the Internet posting. “Scholars have paralled (sic) this to suicide bombers whose intention, by sacrificing their lives, is to help…