The US doesn't need to make a case against him. They just need to make an accusation in most cases, and that's enough to extradite. What you're missing is, th

The US doesn't need to make a case against him. They just need to make an accusation in most cases, and that's enough to extradite. What you're missing is, the US has the ability to declare him an enemy combatant, and stuff him in Guantanamo Bay. The US claims there is no right to due process there. The US Gov could lock him away forever with no trial and that's that.