I think Trump managed to get MBS out of an assassination/kill box in time. IIRC, Crown Prince MBS was there on that date. Saudi Civil War also known as Crackdown on Corruption sort of.
JMHO
The Tropicana video turned up empty. Though it does look like the Saudi Arabia Security Services which is a private military company that guards the royal family was there that night. Which likely means someone was there but I haven't found out who.