He was truly amazing! A hero to me and my son.

Chris Kyle, former Navy SEAL of NBC's 'Stars Earn Stripes,' Killed in Texas

Published in January 2012, "American Sniper: The Autobiography of the Most Lethal Sniper in U.S. Military History" recalled Kyle's career as a SEAL sniper -- he was a member of SEAL Team 3 -- recording the most career kills in U.S. military history. According to the book blurb, the Pentagon has confirmed more than 150 of Kyles' kills, but has declined to verify the total number. It also states that Iraqi insurgents nicknamed Kyle al-Shaitan, or "the devil," and placed a bounty on his head.

Kyle earned two Silver Stars, five Bronze Stars With Valor and two Navy and Marine Corps Achievement medals.