responsibility yet, less than a week before the shooting, al qaeda's american spokesman told libyans to attack american interests. in the 17-minute audio message in arabic, adam gudan said rise up and have vengeance against america for arresting al libi. he was arrested in the capital tripoli two months ago. he was wanted in connection of the 1998 bombing of the u.s. embassies in kenya and tanzania. impossible to know why smith was killed, but a look at his twitter account shows the world has lost not just a dedicated american teacher but a keen whit, too. this from his account wednesday. people always hate the cool kids, for clarification, we're the cool kids.