. . . .in the absence of evidence of a murder/suicide . . .
There's a late in the piece strange aside. All who have made a close study of the disaster know what happened. . . know how it happened . . . and maybe out of forensic interest, are happy to debate the minutia ad nauseam with any other interested party who has read widely enough.
That said, in the absence of a thorough expert impartial analysis and publication to the contrary, the books written by Justice Peter Mahon and Captain Gordon Vette will ever receive the credence they deserve.