Thread: Who is Nick Hagen?
Then there was Nick Hagen Writer/Producer/Director but there was no indication of any connection to LotR on that page.
I also found that a Tolkien Fan, Username Nick Hagen, posted some drawings inspired by LotR on another site. The drawings were done in a...erm..."youthful" spirit . I doubt he's the one you mean.
Do you have any more to go on?
I'll start us off with five bucks!