US interpreter who witnessed torture in Iraq shot herself with service rifle

It is possible that one of the victims of the United States' torture policy is a young, devout Mormon woman from Arizona called Alyssa Peterson. She was a soldier who not only saw the rough interrogation methods that the US military used on Iraqi prisoners, but was deeply troubled by them. Some weeks after formally protesting about them to her superiors, and asking to be reassigned, she took her gun and killed herself. The cause of her death was kept secret for two years, and the mystery of what Peterson witnessed, and the content of the notes she made, still goes on.