What did gunman's widow know before Pulse club shooting?

ORLANDO, Fla. - If jurors in a federal trial in Florida believe government prosecutors, the wife of the man who carried out one of the U.S.'s biggest mass shootings gave a "green light" to her husband when he wanted to execute his terrorist-inspired attack.

The 31-year-old Salman went on trial Wednesday in Orlando, after pleading not guilty in January to charges of aiding and abetting her husband in his attack on the Pulse nightclub in June of 2016. She's also charged with obstruction of justice. If convicted, she faces life in prison.

Prosecutors portrayed a woman who knew Mateen was buying rounds of ammunition for his AR-15, helped him spend thousands of dollars before the attack and knew about his plan when he left the house in the hours before the shooting.

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