Haines' daughter: We won't get closure until there is a bullet between the eyes of Jihadi John

David Haines' daughter Bethany Credit: ITV News

The daughter of murdered British aid worker David Haines has said families of other Islamic State victims will only get closure when there is a "bullet between the eyes" of Jihadi John.

Speaking exclusively to ITV News after reports named the militant, Bethany Haines said knowing his identity was "a good step" - but said the real relief would be knowing he had been killed.

'Jihadi John', so called because of hostages' nicknaming of their British captors after members of The Beatles, was named today by a number of news outlets as Kuwait-born Mohammed Emwazi.

He has been pictured in videos purporting to show the killing of a series of captives, including US journalists James Foley and Steven Sotloff, British aid workers David Haines and Alan Henning, and US aid worker Peter Kassig.

Haines' daughter also said while she believed security forces were doing all they could, more stringent security checks should be introduced at airports.

She compared Emwazi's journey to Syria to that of three schoolgirls from London, believed to have travelled to the war-torn country to join Islamic State forces last week.

Shamima Begum, 15, Kadiza Sultana, 16, and 15-year-old Amira Abase boarded a flight from Gatwick Airport to Istanbul last Tuesday.