Paolo Ghelardini, who was arrested this spring, has been formally indicted in Romania. According to news accounts, he had over 9500 child pornography images and 1000 videos. At this point, he has not been charged with production.
He allegedly had 19 different Facebook accounts, and was apparently active between January 2010 and May 2011.
He had also used the alias "Paul Grechiadan" among others.