Wrong penalty although the EU stupidly prohibits the right one. If it can be proved that one Dane was murdered by someone acting on his call to murder than he is guilty of the exact same crime as Charles Manson was in sending his acolytes out to kill Sharon Tate et al. He deserves the same correct punishment that the jury gave Charlie. Alas the Supreme Court gave Charlie the same limits to which the EU hold the Danes. Since Abu-Laban advocates the death penalty for his charges it's unfair and unwise to not offer him the same for inciting mass murder.
This isn't to imply I favor the Clintonian strategy of only using the legal system in this fight, just that we shouldn't avoid using it where appropriate. When the cause is sufficient and the guilt is self evident the Commander in Chief has the right to choose which branch of the CIA or armed forces is appropriate to administer the penalty.