investigators are analyzing the execution videos. >> the media center in syria is like a digital network. it's almost like a tv station. >> they have the ability to move cameras, lighting, sound into a situation, do the deed without being molested and nobody is dropping bombs on them or observing them, move back to their fixed facility media center and get it on the web in a matter of minutes. they have the capability to get the equipment, the money to do it. >> does it look to you like they have a team with professional training? >> yes. >> maybe former journalists. >> they may be former journalists. there is some suspicion that some people in the music industry is helping them with music and sound, maybe even with executions. >> and it's media guru is