Huh? I assume you're referring to the Skyrim Demo? Where did you hear such details about a man being stuck to a wall? I've read every single article and heard nothing about this. :blink:
Arvel is in another cavernous area down some spiral wooden stairs. We can hear his voice. Ominously, cobwebs accumulate and thicken the further we go, and predictably but in no way disappointingly, Skyrim's own little incidental take on Shelob emerges and has to be put down before you can reach Arvel, who is caught in her web.
You can interrogate him about the dragon's claw, and he says he knows how it works and the incredible Nord power it unlocks, and that he'll cut you in if you cut him down. Obviously he then does a runner. "You fool," he says, running away. "Why should I share the treasure with anyone?" Because otherwise I'll fire a slow-motion arrow into the back of your head and steal your claw and journal anyway. Bye bye, Arvel.
Another article mentions that Arvel is a Dunmer.