I'm caught my vegan friend eating meat and I am going to tell everyone about it.
Why would you throw your friend under the bus like that?
He is such a hypocrite and he needs to pay for it.
Your friend's eating habits are his own business. Calling him out for eating meat because he is a vegan is a breach of trust between you. Don't go around talking about people's personal lives.
I will talk about it and make him pay for his crimes.
It is not really a crime, it is more like a secret. In this case, you do not need to be running around telling people about it. What good is it going to do to you?