Dragana Haines: 'It's like living through that day again'
26 February 2015 Last updated at 22:22 GMT
The masked Islamic State militant known as "Jihadi John" has been named as Mohammed Emwazi, from west London.
Emwazi is thought to have been pictured in the videos of the beheadings of Western hostages, including the British aid worker David Haines.
Mr Haines, a 44-year-old father of two, had been held by Islamic State fighters in Syria.
On hearing the news that "Jihadi John" had been identified, the wife of Mr Haines, Dragana Haines, gave her reaction.