A gunman killed 50 people in an Orlando, Florida, nightclub early Sunday morning and wounded dozens more before police stormed the building.
50 Dead in Worst Mass Shooting in US History

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Friends and family members embrace outside Orlando Police Headquarters after a shooting at the Pulse night club, in Orlando, Florida, June 12, 2016.

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Terry DeCarlo, executive director of the LGBT Center of Central Florida, left, Kelvin Cobaris, pastor of The Impact Church, center, and Orlando City Commissioner Patty Sheehan console each other after a shooting involving multiple fatalities at a nightclu

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Hundreds of community members line up outside a clinic to donate blood after an early morning shooting attack at a gay nightclub in Orlando, Florida, June 12, 2016.

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Demetrice Naulings sobs outside Orlando Police Headquarters where police are interviewing witnesses in the investigation of a shooting at the Pulse nightclub, Orlando, Florida, June 12, 2016.