Kyle had a good childhood loving parents and a nice home. When he graduated joining the military and entering the special forces, he was in two years when he learned of the home invasion that led to his parents death.

Kyle took leave and returned home. It wasn't long before he was able to track down the men responsible. Using his training he located them and in a blind rage killed all 6 of the men.

The police arrived on scene to find Kyle covered in blood and the 6 corpses. Kyle was arrested and tried for murder, found guilty and sent to prison for life. The CIA had already had an interest in the young man, and his incarceration gave them an opportunity. Staging his death in prison and recruiting him. Training him even further to deal with any determined to be threat. Since his recruitment Kyle has more than two dozen confirmed kills of targets, not counting those protecting them.