A little bit of information on the first suspect is up on the website. Who is this mysterious shadowy person! Click to find out! No, seriously. Anyone who can add a highlight to the blackness might gain an extra kernel of knowledge.
I've also had a few people ask for hints for entering the mystery zone.
Hint 01 - Start on the projects page. That's where you'll find your answer.
Hint 02 - Sometimes you need to see an image in an alternate way.