If my post alluded to the aspect that the U.S. is using Iran as a smokescreen for MBS/KSA, I should have been clearer-- I meant to say it straight out.
Again, the provocation and reprisals with Iran is meant to draw attention away from MBS/KSA who is being scrutinized once again for their part in Kashoggi's killing. The U.N. wants further investigation, which the Trump administration and MBS/KSA obviously don't want because for them, it's bad for business.
If you look at the social media of Agnes Callamard, who led the investigation and prepared the report for the U.N., you will see she is being swarmed by Saudi operatives, many who are paid to send out spam subtweets to harass her. It's an organized effort and it's become their M.O. Hopefully some further investigation will eventually be mounted.