Chesser decided to join al Shabaab 's struggle in Somalia because of Awlaki 's teachings on jihad , according to the congressional report . Awlaki was killed by a U.S. drone strike in 2011 , but continues to influence Muslim . Peter Bergen notes that the cleric 's influence was clear in al Qaeda indictment . Other terrorism cases in the the United States bear imprint of Awlaki 's statements , Bergen says . Bergen : Will others sympathetic to Bergen continue to spread his teachings ?
Awlaki was killed by a U.S. drone strike in 2011 , but continues to influence Muslim . Peter Bergen notes that the cleric 's influence was clear in al Qaeda indictment . Other terrorism cases in the the United States bear imprint of Awlaki 's statements , Bergen says . Bergen : Will others sympathetic to Bergen continue to spread his teachings ?