@Pathfinder
I like the character and the idea behind him, he'd make a good villain. Buuut the RP is supposed to be modern and he doesn't really fit in with the situation.
But I know two easy fixes-- He could've been put in suspended animation of some sort for a long time and just came back. He's dazed and confused and needs help for most things. [i]Or[/i], better yet, he could be sort of a real-life urban legend who hides his identity and lives deep in the forest, waiting for a good moment to strike.