A survivor of one of the deadliest terror attacks in US history has spoken out after the killing of Al-Qaeda chief Ayman al-Zawahiri and said there is " one less mass murderer in the world".
As well as the 9/11 attacks, al-Zawahiri was wanted by the FBI for his role in the 1998 embassy bombings of Nairobi, Kenya and Dar es Salaam, Tanzania.
Dubbing him "the nasty doctor", the former ambassador to Kenya, Prudence Bushnell, said all she feels towards the people who left her with post-traumatic stress disorder (PTSD) and her friends and colleagues buried under the rubble is "cold, loathing and disdain".