After Yor was corrupted, he saw his Rose as different. And so he changed it to match his new views of it. We don't have an exact timeline of his murders, so we don't exactly know when he murdered Pahanin. The Super Good Advice is on Mars, so... That part is a theory. The Ghost who went looking for a Guardian on Mars is not Yor's, but the one encountered by Holborn's Host may be