I don’t yet know whether this analysis is reliable or not, but it certainly raises interesting questions:
https://herald.report/how-to-kill-a-fake-fiancee-the-khashoggi-case/
p.s. I have no interest in defending the despicable Saudis, but US foreign policy should not be manipulated by agitprop and disinformation, if that’s what this case proves to be.