post talking about creating an escape route, if you will, to the south of the city to darazur and palmirawhich is cities where isis has allegedly fled to. they are investigating whether the reports are true. there is no confirmation at this stage. and it will certainly be interesting what evidence the russians come up with to prove 100% that it was al baghdadi who was killed in this air strike, especially if, as is being reported in russian state media, there were another 330 isis operatives killed in the same air strike. and of course, christine, we've had numerous reports of al baghdadi being killed in the past, so that is why the russians are being careful to couch this one and saying we are looking to verify information. so, it will be interesting, as i said, to see what evidence they do come up with, if they can definitively prove that he was killed and it was by their air strike. >> diana, christine made mention of this video we're seeing on the screen now, the only known video of the man some call the invisible sheikh. back in july 2014, a sermon he delivered in mosul. only two pho