Growing Up Gitmo

June 29, 2006 -- -- Omar Khadr isn't your average Guantanamo detainee. A Canadian citizen of Arab descent, Khadr was taken into U.S. custody when he was 15 years old on charges of killing a U.S. soldier in Afghanistan. Now 19, Omar has spent four years of his teenage life growing up at Gitmo.

And now that the Supreme Court has ruled that trying Guantanamo Bay detainees in military tribunals violates U.S. and international law, it's unclear when, or if, he'll get the chance to argue for his freedom.

Khadr's family -- dubbed Canada's First Family of Terrorism -- moved him to Pakistan and later Afghanistan when he was just 4 years old. The U.S. government says his father was a close friend of Osama bin Laden and founding member of al Qaeda who would take the family to bin Laden's compound to celebrate Ramadan.

When Omar was 15 -- a time when most American kids are getting tutored in math or for the SATs -- his father got him a private tutor in al Qaeda weapons training. It's after that training that Omar allegedly lobbed a hand grenade, killing U.S. Army Sgt. First Class Christopher Speer. Another soldier was wounded in the attack, and Omar was left nearly blind in one eye.

The U.S. government is unequivocal it its allegations of Khadr's crimes, saying he "conspired with Osama bin Laden, Ayman al Zawahiri … and various other members of the al Qaeda organization." With them, American authorities say, Khadr intended to attack civilians and carry out acts of terrorism.

But do his actions mean he should be detained and treated as an adult at the age of 15? Amnesty International says no -- it has protested Omar's incarceration at Guantanamo, calling it cruel and degrading treatment and a total denial of justice. At minimum, Amnesty said, he should be kept away from other adults and given a proper education.

Khadr's lawyers said his detainment violates international law. After spending the bulk of his adolescence in captivity, his lawyers told ABC News that his psychological state has gotten progressively worse.