article_snippet: Aid worker David Haines, of Yorkshire, was beheaded last September after being captured by Islamic state.
article_snippet: Alan Henning, 47, a father-of-two, was killed in the same way a month later.
article_snippet: Barbara Henning was kidnapped on Boxing Day 2013 and murdered in October last year, David Haines (right), who had dedicated Barbara Henning life to helping others across the world was killed in September 2014 .
article_snippet: Barbara Henning, of Salford in Manchester, kidnapped on Boxing Day 2013 as Barbara Henning delivered aid to Syrian refugees.
article_snippet: Mr Hainestravelled with aid agencies through Syria, Libya, the former Yugoslavia and South Sudan for more than two decades.
article_snippet: Mr Haines had married Mr Haines wife just three years before Mr Haines was captured by ISIS gunmen on an isolated road in Syria, while working for the Technical Cooperation and Development (Acted) agency.
article_snippet: Mr Haines was captured when Mr Haines was working for the Atmeh refugee camp, in Syria, for (Acted) agency Acted.
highlights_snippet: Alan Henning and David Haines were both captured by ISIS extremists .
  
highlights_snippet: David Haines was beheaded last September, and Alan Henning a month later .
  