Families of hostages killed by the self-described Islamic State militant group are reacting to the identification Thursday of "Jihadi John" as Mohammed Emzawi, a Kuwaiti-born British man who is seen in the group's videos appearing to behead the hostages.

Barak Barfi, spokesman for the family of U.S. journalist Steven Sotloff, told Sky News the family hopes the man known as "Jihadi John" "will be caught by American intelligence officials, brought to trial in the United States, and convicted for the crime of beheading their son."

Diane Foley, the mother of journalist James Foley, who was also killed by the group, told The Times of London: "It saddens me, his continued hatred. He felt wronged, now we hate him — now that just prolongs the hatred. We need to end it. As a mum I forgive him. You know, the whole thing is tragic — an ongoing tragedy."

Emzawi is thought to be in the videos of the killings of Sotloff, Foley, British aid worker David Haines, British taxi driver Alan Henning and U.S. aid worker Abdul-Rahman, also known as Peter Kassig.

Haines' wife, Dragana, told the BBC she hoped Emzawi is "caught alive."

"I think that's the only ... moral satisfaction for the families of all the people he murdered," she said. "If he gets killed in action, that way it would be a honorable death for him and that is the last thing I would actually want for someone like him."

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