I Am the Mission (Unknown Assassin Series #2)

He was the perfect assassin.
Boy Nobody: No name. No past. No remorse. At least until he began to ask questions and challenge his orders -- until he fell in love with his target. Now The Program is worried that its valuable soldier has become a liability.
Boy Nobody, haunted by the outcome of his last assignment, is given a new mission. A test of sorts. A chance to show his loyalty.
His objective: Take out Eugene Moore, the owner of a military training and indoctrination camp for teenagers. ...