Four of the Nevada city's biggest casinos -- Caesars Palace, the Bellagio, Bally's and the Flamingo -- are nearby, and police collected surveillance-camera video from them to help the probe.
The whole scene played out in the midst of the Las Vegas tourist hub, closing a block and a half of the well-known boulevard near some of the Nevada city's biggest draws -- Caesars Palace, the Bellagio, Bally's and the Flamingo.