6) William John Brennan – Disappearing with $500,000 in stolen chips and cash
William John Brennan, a sports book cashier at Stardust hotel on the Las Vegas Strip, walked out the casino door with $500,000 worth of cash and chips in a bag in 1992, never to be seen again. It was a shock to people how a single person managed to dissipate in thin air from a camera-laden establishment. A warrant was issued for his arrest, but the case remains unresolved to date.