another image from the video...It is grainy but the man's hair is pretty short and he has a broad set of shoulders blades, but the shoulder droop.
http://www.aljazeera.com/cgi-bin/news_service/pics/2524.jpg (person sitting near the hole in the ground)
another picture of Maupin...
http://images.thisislondon.co.uk/v2/news/iraqmaupinvidR290604_450x350.jpg (Maupin in his capture video - look at his shoulders (drooping) and he looks to have a broad chest as well as broad shoulder blades)
Maupin looks to be broad shouldered with a thin waist, the person sitting by the hole in the ground looks to have the same upper torso structure as Maupin.
I believe it his him and that he was killed a long time ago (probably right after his capture video was aired) and the freaken terrorists had to have something to shock us with yesterday since the surprise turnover of Iraq was yesterday.
