From Patriot Post:

Attorney General William Barr announced on Monday that Mohammed Alshamrani, the Royal Saudi Air Force 2nd lieutenant studying at Naval Air Station Pensacola who shot and kill three U.S. Navy sailors last December, was not a “lone wolf” but was in fact acting in direct coordination with al-Qaida. Barr explained that the FBI was able to make this determination via data retrieved from his Apple cellphones.