Well, suppose he started losing ... seems possible.
I was skeptical that Paddock could make millions from video poker. Casinos don’t let you win in the long run. But what if Paddock had discovered a glitch in the software for a particular machine that allowed him to win consistently. Suppose this glitch made Paddock and his family millionaires, but then — unknown to Paddock — the game supplier fixed the glitch and Paddock started losing consistently, causing him to get mad at the casino.
I’m still skeptical.