Grim relief, mixed feelings in Britain over 'Jihadi John' strike

By Estelle Shirbon LONDON (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 two British aid workers he killed on video. Emwazi was described as Islamic State's "lead executioner" by Prime Minister David Cameron, who praised the two British victims, Alan Henning and David Haines, as "the best of British". "After seeing the news that 'Jihadi John' was