Trigger warning: Assault, Rape, Torture, Paedophilia, Incest

Nine years ago a local man named Ronald Van Der Plaat was sentenced to 14 years in jail for the rape and torture of his daughter.

While reading the newspaper today, I found out that he was paroled last month.  I feel appalled, sick, and despairing.  

I keep thinking things like:
How can people like him even exist in the same world that I experience?
Why is it so often men that do things like this?
What would I do if I ran into him on the street?

I want to write more about this, but I'm honestly too distressed.