The user previously known as "Shane Ispedo" is currently facing over 50 charges related to possession, distribution, and production of child pornography. Shane Dale Pattison is a 21-year-old former student from Marshall, Saskatchewan who sometimes used the name "Pokedod." I believe that this is his DeviantArt site: http://pokedod.deviantart.com/ . It's strikingly ordinary.
When I was in high school, many of us envisioned pedophiles as dirty old men. A number of Catholic priests had been charged, including two who had been pastors in the local Catholic Church. Years later, it's difficult to wrap my head around the idea of people younger than I am now being arrested for sex offenses. "What made them that way?" I wonder sometimes. A number of causes have been suggested, e.g., experiencing sexual abuse, exposure to pornography, genetics, and personal choice. But nobody really knows.