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Scenes from the deadliest mass shooting in modern history

A gunman killed 50 people and injured 53 in a crowded gay nightclub in Orlando, Florida, before being shot dead by police, June 12, 2016.

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A nation mourns

While investigators search for evidence at the crime scene and gather more details on the killer's claimed allegiance to militant group Islamic State, a shocked nation mourns the victims of the massacre at the Pulse nightclub in Orlando, Florida.

Fifty, including 29-year-old gunman Omar Mateen, were killed at the nightclub, which catered to the LGBT community. It was the deadliest mass shooting in modern U.S. history.

-By CNBC's Adam Jeffery

Posted 12, June 2016

Steve Nesius | Reuters