so ... they weren't successful. (I haven't been to Vegas since 2016, but they don't have metal detectors now do they?)

The whole Vegas thing felt like a failed FBI assassination attempt. It got no coverage for years because of how insane it was. There are videos of guards escorting Saudis out of hotels. I had a friend who was a managing editor in Pahrump (1 hour north of Vegas) for a lot of the west coast news papers and he said all their reporters were stonewalled by the local police and the FBI. He personally believes it was some MK Ultra shit, but his staff couldn't ever get any evidence.

Never seen the 4chan post ... might just be spaghetti at the wall that got lucky ... but the whole thing was totally some failed three-letter-agency psyop.