It's not up to you or the casino to "press charges" against anyone. That is left up to the prosecuting agency. I can only assume that a police report was taken and forwarded to the appropriate authorities. I'd suggest you contact the casino to find out what was done. You can also follow up with the police agency that handles cases arising from that casino and the local DA's office to see if a report was taken and what is going on with the case.
A casino does not have a duty to ask you whether you want to press charges; that is up to you. It's good that his information is now on record, so you can still press charges, if you so choose.
<a href="http://thecorporateattorneys.com/">San Diego business lawyer Sergei Tokmakov</a>.
It's up to the prosecution to press charges. However, I would think they would follow up with you as it sounds as if you are a necessary witness. My guess is that they didn't apprehend him and they don't know who to report.
At your service,