Chris Kyle

(KETK) — He was described as an American hero, 38-year-old Chris Kyle was a former Navy SEAL, and author of the bestselling autobiography American Sniper an autobiography that recapped moments of Kyle's deployments in Iraq during the worst part of insurgency.

Kyle is best known for holding the most career sniper kills in u-s military history, a record 150 kills.

Kyles says during an interview with Lester Holts in February 2012, "Every person I killed I have a clear conscience of, because they were actively trying to harm Americans, allies or the civilians."

His most famous kill shot was at an insurgent taken from 21 hundred yards, or 1.2 miles away—an unheard of distance.

Kyle says during the Holts interview, " I saw he had an RPG trying to hide, stay out of sight of him, and then about the time i saw he was getting into attack position, raising the RPG, I decided to take the shot."

During his time as a Navy SEAL Kyle served 4four tours of duty in Iraq, receiving 2 silver stars.

He left the navy in 2009, but was still very active in veteran affairs.

Kyle founded the FITCO foundation that assists veterans suffering from PTSD with exercise and counseling.

Kyle is survived by his wife and two children.