London, Feb 27 (IANS): The widow of a man killed by a masked Islamic State (IS) militant known as 'Jihadi John' has said that she wants him caught alive, a media report said Friday.

Dragana Haines says the "last thing" she wants for the man who killed her husband, British aid worker David Haines, is an "honourable death", BBC reported.

"That's the only moral satisfaction for the families of all the people that he murdered, because if he gets killed in the action, to put it that way, it will be an honourable death for him and that is the last thing I would actually want for someone like him.

"I think he needs to be put to justice, but not in that way."

The militant, pictured in the videos of the beheadings of Western hostages, has been named as Mohammed Emwazi, a Kuwaiti-born Briton from west London.

British police have not commented on his identity, citing ongoing inquiries.

Emwazi, who is in his mid-20s and was previously known to British security services, first appeared in a video last August, when he killed US journalist James Foley.

He was later thought to have been pictured in the videos of the beheadings of Haines, US journalist Steven Sotloff, British taxi driver-turned-aid worker Alan Henning, and American aid worker Abdul-Rahman Kassig, also known as Peter.

In each of the videos, the militant appeared dressed in a black robe with a black balaclava covering all but his eyes and the top of his nose.

Speaking with a British accent, he taunted Western powers before holding his knife to the hostages' necks, appearing to start cutting before the film stopped.

The victims' decapitated bodies were then shown.

Earlier this month, the militant featured in a video in which Japanese journalist Kenji Goto was beheaded.

Hostages released by IS said he was one of three British jihadis guarding Westerners abducted by the group in Syria.

They were collectively known as "the Beatles".