All we know is that Khadr was captured on a battle field as a 15-year-old.  

Any so-called confession is worthless as it was secured under considerable duress. 

The US soldier who died was not a "medic" — he was receiving training to be a medic, but he was not certified and he was not acting as a medic during the firefight.

"Caught on tape" maybe means something to the TMZ generation and those who look to Gerry Springer for inspiration, but it is not a standard recognized in law.