Grim relief in Britain and U.S. over 'Jihadi John' strike

By Estelle Shirbon and Laila Kearney LONDON/NEW YORK (Reuters) - News that the Islamic State militant known as "Jihadi John" may have died in a U.S. air strike brought relief mingled with grief and vengeful thoughts on Friday to the loved ones of the British and American aid workers and journalists he killed on video. Emwazi was described as Islamic State's "lead executioner" by British Prime Minister David Cameron following the strike, which came a year after U.S. President Barack Obama promise