I want to know about my fiance's past before we get married. It's only right.
Do you have reason to believe he hasn't been forthcoming?
There are some rumors about him being a mental patient and wanted to kill his teachers.
I understand why you'd be concerned. Maybe they're exaggerations, but you need to hear hear his side of the story.
He's absolutely lying to me if he denies everything.
That's not fair when listening to someone's side of the story. You should be objective if you want the truth.