You may never have heard of Benny Binion, but odds are you're familiar with some of his work. So, who was he? For starters, he was one of the pioneers in Las Vegas gaming and founder of the World Series of Poker. While Binion was said to be one of the nicest men you'd ever meet, he was also a guy you didn't want to cross. From his start as a gambler and racketeer in Dallas, TX, to the establishment of his Horseshoe Hotel and Casino on Fremont Street in downtown Las Vegas, Binion was as ruthless as he was charismatic. Binion reshaped Las Vegas gambling, attracting high rollers and average players alike.