How Ayman al-Zawahiri’s ‘pattern of life’ allowed the US to kill al-Qaida leader

After a decades-long hunt the simple habit of sitting out on the balcony gave the CIA an opportunity to launch tailored strike'

In the end it was one of the oldest mistakes in the fugitive's handbook that apparently did for Ayman al-Zawahiri, the top al-Qaida leader killed, according to US intelligence, by a drone strike on Sunday morning: he developed a habit.

The co-planner of the 9/11 attacks on New York and Washington in 2001 had acquired a taste for sitting out on the balcony of his safe house in Sherpur, a well-to-do diplomatic enclave of Kabul. He grew especially fond of stepping out on to the balcony after morning prayers, so that he could watch the sun rise over the Afghan capital.