US Supreme Court declines to review Omar Khadr's 2002 convictions for murder and war crimes.

The US Supreme Court has declined to consider an appeal by former Guantanamo Bay detainee Omar Khadr, who sought to dismiss his 2002 convictions for the murder of an American soldier and other war crimes. Khadr, now 37, argued that his convictions, based on actions taken in 2002 before Congress passed the statute, violated the US Constitution's ban on criminalizing conduct after it has occurred. The Supreme Court's decision not to hear the appeal means that Khadr's convictions stand.