escaped? are they going to go home and plot terror attacks there? how many civilians were killed in this brutal and bloody fight and finally, where is the leader of isis, reported killed so many times, emerging in a recent recording. where is he now? does he move on. does he, quote, escape from this particular violence or does he go on to inspire attacks elsewhere? back to you, alisyn. >> nick paton walsh, thank you very much for the reporting. that video of the families fleeing and those vast ruins, as you call them, is incredible. thank you very much. up next, the brother of one of the green berets killed in niger. he will tell us about his 29-year-old brother, dustin wright.