New details about the secret CIA weapon that killed al-Qaeda leader Ayman al-Zawahiri were released. He was Osama Bin Laden's right-hand man and was a key figure in plotting the 9/11 attack. Zawahiri was killed by Ginsu missiles, named after popular slice-and-dice Japanese knives. They were fired with pinpoint accuracy from a drone flying at 50,000 feet. The missiles do not explode. Instead, they are equipped with six super-sharp rotating blades that cut through concrete.