Yes, I'm aware of casinos ties to organized crime. However, they're a lot more above ground these days and the money that was extorted wasn't illegally gained. If you go to a casino on the strip tonight and cheat or steal chips you'll be arrested face felony charges. You won't be taken to an alley and shot or even worked over like you might have 50 years ago. It makes no sense for them to commit serious violent crimes when they can ruin you through 100% legal avenues.

The idea that they're paying because a hit squad is about to drop in, murder them all and get the money back is pure fantasy. If modern casinos figure out who did this they'll forward it to law enforcement. In all likelihood they have no idea, though.

If there's any evidence that these casinos still commit murder like that I'm all ears.

Sure, 30 years ago, but to me it is very unclear how active or influential the mafia is in the 2020's and I'm not seeing any evidence provided here.

Casino, by Nicholas Pileggi is the inside story of the Mafia and the casinos. It is what inspired the Hollywood movies.

https://www.goodreads.com/book/show/387627.Casino is