Ladislaus, I don't think there is any plausible explanation. I am sure he can employ experts to make him look as good as possible. What sort of explanation would satisfy you? There isn't any worthwhile explanation. What he did tells us who he really is. He can never be trusted.
Right, at this moment I am incapable of imagining a satisfactory explanation for what he did. At least, though, if he could make a convincing case that he did not know, one could write it off as merely gross incompetence.