Deadly Las Vegas massacre, by the numbers: How many killed, injured, more

Thousands of country music fans in town for the Route 91 Harvest festival in Las Vegas ran for cover as a gunman opened fire from the Mandalay Bay Resort Casino Sunday night.

More than 50 died and at least 500 were injured, making the Las Vegas massacre the deadliest mass shooting in modern U.S. history.

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Officials have identified 64-year-old Stephen Paddock of Mesquite, Nevada, as the gunman responsible.

According to The Associated Press, Paddock was found dead when SWAT officers used explosives to storm into his room at the Mandalay Bay hotel. Authorities said he had killed himself.

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The Las Vegas massacre, by the numbers

200-300: Approximate number of bullets heard, according to witnesses

10-15 minutes: Approximate time gunfire went on, according to witnesses

22,000: Approximate number of concert attendees at Route 91 Sunday

10:08 p.m. local time: Time of shooting

64: Age of gunman Stephen Paddock

80: Approximate number of miles from Paddock's home in Mesquite to Las Vegas

10: Number of rifles found in gunman's room

32nd: Mandalay Bay hotel floor from which Paddock unleashed barrage of bullets

400 yards: Distance from hotel to concert stage

40,000: 

Approximate number of concert-goers at three-day Route 91 Harvest festival

Cox Media Group