- 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.
- 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.
- 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.)