You just said so .. you have a friend who basically said he had no integrity, with which you obviously agree and that only lets me infer you don't like him. And, because of that bias you are more than willing to post something that may or may not be true as undeniable fact ..
I believe what I know .. actually know. I will never know if he said that or not so I will never say he did it, nor will I ever say he didn't .... the chance of being wrong and spreading lies outweighs any benefit of being right.