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ORLANDO, FL - JUNE 14:  FBI agents continue to investigate in the backyard  of the Pulse gay nightclub where Omar Mateen opened fire on June 14, 2016 in Orlando, Florida. At least 49 people were killed and 53 others injured in what is the deadliest mass shooting in the country's history.  (Photo by Joe Raedle/Getty Images)
ORLANDO, FL - JUNE 14:  FBI agents continue to investigate in the backyard  of the Pulse gay nightclub where Omar Mateen opened fire on June 14, 2016 in Orlando, Florida. At least 49 people were killed and 53 others injured in what is the deadliest mass shooting in the country's history.  (Photo by Joe Raedle/Getty Images)

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    Officials: Orlando killer visited club before attack

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Officials: Orlando killer visited club before attack

The Orlando gunman visited Pulse nightclub earlier Saturday night before returning to carry out his attack as the gay club prepared to close early Sunday morning, law enforcement officials say.

Officials: Orlando killer visited club before attack

The Orlando gunman visited Pulse nightclub earlier Saturday night before returning to carry out his attack as the gay club prepared to close early Sunday morning, law enforcement officials say.