Violence is defined as physical force. I know someone who had a family member married to a JW. He believed the JWs were wrecking his brother's life. The shots that he fired were never intended to do any harm. They were his expression of how frustrated he felt.
I do not know if the man who fired the shots was aiming to shoot someone. If he was, it is violence. If not, I think it cannot rightly be called violence, can it?
Is a warning of violence violence? I don't know.
