just been released from prisons day before the attack. cnn's international correspondent clarissa ward is live in kabul. what more are you learning? >> reporter: really this is bound, kate u to reignite the debate about the u.s. handing over bagram air base to the afghan national army. that took place on july 1st. we now understanding from this new cnn reporting that abdul rehman al loghri, the terrorist from isis k responsible for killing 13 american service members and dozens of afghan civilians trying to get out of the country, that he had been held at parwan prison in bagram air base. when the taliban took power on that sunday, the first thing they did before coming into kabul was essentially to empty the prisons at parwan prison in bagram and also pul-e-charkhi. i remember that very well because there were very real