This site has some interesting reading in it.
http://www.kuro5hin.org/story/2004/5/15/22827/0477
Excerpts:
15) Orange jumpsuit
Berg shown in video wearing orange jumpsuit known to be of U.S. issue. The orange jump suit "appears" to be identical to the jumpsuits used at Guantanamo. (Compare with pictures at Guantanamo.) The orange jumpsuit was standard US military issue to men in custody. It is unlikely Berg would continue wearing a U.S. custodial uniform if he had been released by the military as they claim. The fact he was still wearing the suit is both anomalous and suggestive. One wonders: Was there an immediate transfer of Berg from the US military to unknown persons, preventing Berg from discarding his US prison garb?
8) Apprehension of Berg
Berg was mysteriously captured while still wearing jumpsuit. Either he escaped from U.S. captors or U.S. let him out -- with orange suit and all -- to be immediately apprehended by "terrorists" (before he had a chance to change). Or, the captors somehow came across a U.S. military prison jumpsuit. (More on this is below.) This scenario contradicts the following:
11) Berg is killed before torture photos released but video tape refers to photos?
To quote "Fishy Circumstances and Flawed Timelines Surround American's Beheading)":
"me and a friend were discussing recent news events and trying to piece together the information presented to us, thought you might want to look into this further, they said in the news that Nicholas Berg was killed 2 weeks ago (i think), however in the video the culprits who killed him said they were "avenging iraqi prisoner abuse" but those photos weren't released until last week, so my question is how is that even a possible motive if he was killed prior to the abuse photos being released?? maybe i am misinformed but thought id ask the question to someone who would look into it."