LAS VEGAS — At least 59 people were killed and hundreds more were injured Sunday night when a gunman opened fire on more than 22,000 people gathered near the Mandalay Bay Casino for a country music festival.

Police said the suspected gunman, identified as 64-year-old Stephen Craig Paddock, opened fire from the 32nd floor of the Mandalay Bay Hotel on people attending the Route 91 Harvest country music festival. Authorities found him dead in his hotel room, according to the Las Vegas Metropolitan Police Department.

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