My father is a pedophile

[xise]

My mom also thinks he never told my step-mom about his behavior either. But I have no proof that he molested other people and I'd feel like such an idiot if I was wrong but my intuition rarely fails me.

Do we actually need proof to step up and speak our mind?

If he has molested even one person, that's cause enough to tell someone who allows him access to children. I don't see how whether he molested more than one person is very important in your decision whether to warn the parents?