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Context
What happened: Donald Trump approved the execution by US Army firing squad of Nidal Hasan, sentenced to death for killing 13 people at Fort Hood in 2009, the Pentagon chief spokesperson said.
Key numbers: 13 people killed at Fort Hood in 2009. Hasan sentenced to death in 2013. First US soldier executed by the US military in more than 60 years.
Why it matters: The defense secretary recommended the method and the Secretary of the Army will set the time and place. Hasan would be the first US soldier executed by the military in over 60 years.