Joe Harker
Chris Kyle, the subject of the movie American Sniper based off the memoir of the same name, was once asked whether he ever regretted any of his kills.
The response he gave was short and to the point, leaving people in no doubt as to what he thought.
During his time as a US Navy Seal, Chris Kyle became the most prolific sniper in the history of the US military, racking up 160 confirmed kills - although he claimed that his actual total was 255.
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Kyle served four tours in the Iraq War before being discharged from the military in 2009, after which he started writing his memoirs which would eventually be turned into an Academy Award winning film.
The memoirs ended up becoming a bestseller which brought the former Navy Seal nationwide attention, leading him to be asked all sorts of questions.
In an interview with Time editor Belinda Luscombe, Kyle was asked the question whether he had ever regretted any of his many kills.
His response was quick and direct: "No. Not at all."
When Luscombe put it to him that his choice was 'you kill them or they kill other Americans', he simply said 'yes ma'am'.
With a bit more questioning about his stance on the matter Kyle elaborated a bit more on his views on the whole thing.
He said: "For the most part the public are very soft, you live in a dream world, you have no idea what goes on on the other side of the world.
"That the harsh realities that these people are doing to themselves and then to our guys, and there are certain things that need to be done to take care of them."
Portrayed by Bradley Cooper in the American Sniper movie directed by Clint Eastwood, Kyle met a tragic end on 2 February, 2013 at the age of 38.
He and friend Chad Littlefield were shot and killed at a shooting range by ex-marine Eddie Ray Routh, their bodies riddled with bullets fired from weapons Kyle had given to Routh.
The ex-marine had been diagnosed with PTSD and was with Kyle after his mother asked the former Navy Seal to help her son.
A forensic psychologist who interviewed Routh after the killings of Kyle and Littlefield came to the conclusion that the ex-marine thought the two men were taking him somewhere to kill him.
He pleaded not guilty to two counts of murder by way of insanity, but a jury found him guilty and he was sentenced to life imprisonment without the possibility of parole.