A gunman on the 32nd floor of a Las Vegas Strip casino opened fire Sunday night on an outdoor country music concert below, killing more than 50 people — including two off-duty police officers — and wounding in excess of 200, authorities said.
Officers confronted the suspect at Mandalay Bay, across the street from the concert grounds, and he was killed, Clark County Sheriff Joseph Lombardo said. Authorities identified him as Stephen Paddock, 64, a local resident.