I wish we did. The only witness is also the only suspect, and he is far from truthful. Nevertheless, the investigation is ongoing and we do find new pieces of the puzzle now and then. I hope you will join the effort? We'd be glad to get any new facts, or any theories you may have that fit the facts that are already known.
I doubt there are any new "facts" to be found. New assumptions, new nonsense do not count as fact.
This is a dead issue except to those obsessed with it.