When that guy gets blown up in the room in the begining, they say that the door was welded shut and the dude would not have been able to escape... If the door WAS welded shut, hen how could Amanda get into the room and cut the puzzle piece from him?
if i am not mistaken she doesnt. she can't because a) door wielded shut and b) all that was left was half a badly burned severed arm and guts and they dont mention it do the math
First, his torso is still there, along with most of his body parts.
Second, when Kerri walks into the room and looks at the devastation, the shot
switches numerous times showing parts of the body.
Shot number 7 ( at 6:16 ) shows ( what appears to be ) the guy's leg, and there is a puzzle piece carved out of it.
Therefore, the original question still stands.