Al-Zawahiri liked to read on balcony

Zawahiri liked to read alone on balcony, a pattern-of-life intelligence CIA used to kill him

Al-Qaeda leader Ayman al-Zawahiri liked to read alone on the balcony of his Kabul safe house early in the morning, a "pattern-of-life intelligence" that eventually gave American intelligence agencies the chance to carry out a precision strike that killed one of the world's most wanted terrorists