Information on my Great Grandfather Dino Cellini

Hello!

I’ll keep this short and simple. My step great grandfather is Dino Cellini. I’ve heard stories that my mother remembers of him, but I was just wondering if anybody knew of any facts about him? I want to learn more about him, but I don’t talk to that side of my family much. Any information is appreciated! The only things I really know about him is that he helped Meyer Lansky run casinos, one of them being in Havana.