Omar was accused of war crimes, not merely murder. Specifically, he was charged with murder and attempted murder in violation of the laws of war, conspiracy to

Omar was accused of war crimes, not merely murder. Specifically, he was charged with murder and attempted murder in violation of the laws of war, conspiracy to commit terrorism, providing material support for terrorism, and spying. So torture is less than useless in most cases, but it also helped secure a conviction against Khadr. Which is it? Why didn't torture help secure a conviction against everyone else at Guantanamo?