I do think like others that regarding the law or facts, we should expect evidences before expressing a judgment
But I also think that feelings are a different story : it really depends on how you feel about the way people defends themselves. Like even if all of this is false, but he is evasive about it, it may be enough to shatter your trust and therefore your relation.
This part is up to you to determine, taking in consideration that he may be going through rough times, but you don't need someone to be an actual baddie to dislike them, your feelings do not have to be tied to fact.
Good luck anyway, wish you strength
Maybe both are true and he has both russian and chinese citizenship