The jihadist known as "John", the leader of the Beatles and usually referred to as "Jihadi John",[21] was identified by The Washington Post, in February 2015, as Mohammed Emwazi, and appears in a video as Foley's killer. His identity was known to US and UK intelligence agencies in September 2014, but was not released for reasons of operational security.[22] On 12 November 2015, a United States drone aircraft reportedly conducted an airstrike in Raqqa that targeted Emwazi as he left a building and entered a vehicle.[23] US officials stated he had been killed, but his death had not been confirmed.[24] The US was still analysing the data.[25] The official called it a "flawless" and "clean hit" with no collateral damage and that Emwazi "evaporated".[24] A senior US military official was quoted as saying, "we are 99% sure we got him".[26] In January 2016, ISIL confirmed his death.[27]