Complex sentence: This story has never been confirmed, so it may not be true, but it is repeated from many unofficial sources in much the same way, and if it was true, it would not be confirmed anyway-either way, it is not impossible.
Split into simpler sentences: This story has never been confirmed, so it may not be true. But it is repeated from many unofficial sources in much the same way, and if it was true, it would not be confirmed anyway-either way, it is not impossible.