Most likely a vigilante hacker given the stories going around.
Here is a disturbing article dating back to 2001 from the Boston Herald...
The Aaron mentioned in this article is the same guy who now owns Neova.
http://www.predator-hunter.com/ph_po...article&sid=11
Tim has recently been arrested in connection with yet another CP site, and is expected to have more charges pressed related to the sites in the above article.
Shit pretty much hit the fan after the NYT article about that boy who was on Oprah. Neova processed that site and Tim hosted it.
You can decide for yourself where Aaron and Neova stand in all of this. I'm not sure myself.