This is not testimony from a ghost. This is testimony from a human being who
claimed to speak for a ghost. Not the same thing.
I'd be more impressed if it
had been testimony from a ghost.
What about the issues surrounding hearsay, when a 'witness' does not appear in court to speak for themself?
This actually covers several areas and with little to go on, I'll tell you what I'm seeing from a LE view.
1) the broken neck/crushed windpipe- Having dealt with my share of corpses who died violently, I find it almost impossible that the naked eye and certainly the mortician didnt see this immediately. ( those things are very obvious and easy to spot- especially in the soft tissues of the neck area)
But, for whatever the reason- at the time of death/burial, no foul play was indicated-that leads into part 2
2) cant say about then but if this was "today"- no prosecutor anywhere, could get a judge to sign an exhumation order on such a story with no supporting evidence.
3) However, this would NOT stop the mother from pursuing it on her own ( at her expense) but should be easy to block by the husband ( as next of kin)
4) the part about other claims from an ex and another dead spouse under suspicious circumstances.
This is a yes/no and maybe answer. IF a pattern could be established and the claims were shown to be valid ( or a reasonable probability) then they MIGHT be able to get an exhumation order. The dead spouse case would have to be investigated and if suspicious grounds were discovered, that would probably do it. The "ex" saying he beat her is pretty weak because now ( unlike decades past- the pendelum is swinging the other way) the first question would be "If he did all this, why didnt you report it"? ( its common for wives to claim this and often its wholly untrue)
Now, back in that day ( not this day) such a claim from the ex would have much more horsepower and might also do it.