Al-Qaeda Chief Warns US Not to Execute Boston Bomber Tsarnaev

The Boston marathon attack in 2013 killed three people and injured more than 264 civilians.

Runners continue to run towards the finish line of the Boston Marathon as an explosion erupts on 15 April ,2013 (L). File image of Dzhokhar Tsarnaev by FBI. (R) (Photo: Reuters)

• Al Qaeda leader Ayman al-Zawahri threatened the United States with “gravest consequences” if Boston marathon bomber Dzhokhar Tsarnaev or any other Muslim prisoner is executed.
  
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• Tsarnaev, named in Zawahri’s online video message, was sentenced to death by lethal injection on 24 June last year for the 2013 Boston Marathon Attack.
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• The Boston attack killed three people and injured more than 264 civilians. Tsarnaev is serving his term at the Supermax prison in Florence, Colorado.

(With inputs from Reuters.)