Privacy Interrupted

Privacy Interrupted is about a boy that has a photographic memory. His twin brother is killed by his father when he was ten. He wasn't supposed to have anything to do with his family. His mother was insane, and he suffered from multiple disorders. At the age of 15 a Senator takes him under his wing and Smith saves his life. The Senator soon finds out that he's not the one taking care of Smith, but Smith is the one that takes care of him. Smith uses Artificial intelligence to fight on missions where no country can get involved in an assassination. Smith and the Senator have a difference of an opinion and Smith goes into isolation. One day he hears a snowmobile on a ridge and witnesses a man striking someone and that person falls from the cliff. It turns out to be the Senators daughter. He performs CPR on her and saves her life. In a book there's a beginning, a middle and an end. You've read the beginning.