'They can't get away with it': Daughter of murdered British hostage

Bethany Haines, 17, backs military action against Isis militants.

The daughter of the British hostage murdered by Isis militants has spoken out against the terrorist organisation that has ravaged Iraq and Syria, saying it needs to be eradicated.

David Haines, 44, from Perth in Scotland, had been in Syria working for French aid agency Acted when he was kidnapped.

Now his daughter Bethany, 17, has backed the use of military force against the terror group that used her "truly amazing" father's life to send a grisly warning to its enemies.

She said: "Islamic State [Isis] need to be eradicated. They can't continue this way. They can't be doing this to people and get away with it."

Her comments came as the FBI said it had identified the man who beheaded her father and United States journalists James Foley and Steven Sotloff. However, agency director James Comey said the FBI would not yet release the name of the man who has been called "Jihadi John", who speaks in videos of the killings with a London accent.

Comey said the FBI worked out his identity by working with international partners including MI5 and MI6.

The man has threatened to kill Alan Henning, a second British hostage, despite desperate pleas from his family to spare his life.

Bethany Haines said in an interview with Britain's ITV News that the terrorists need to be eradicated "no matter what nationality, if they are Western or not. They need to be stopped. If airstrikes and ground force is what it takes, that's what it takes".

US-led airstrikes are already being carried out across Isis-controlled areas in Syria and Iraq. The US and its Arab allies yesterday struck the oil facilities in Syria that funded the group's brutal rise, while French fighter jets were in action above northern Iraq.

British Prime David Cameron, meanwhile, held a war Cabinet on the Government's plan to target Islamist fighters in northern Iraq and received its backing.

MPs were expected to vote overnight on a Commons motion authorising British involvement in the US-led bombing raids. It means RAF fighter jets could be over Iraq within hours of the vote.

In her interview, Bethany Haines also paid tribute to the selflessness of her father, and spoke of her desire to follow him into aid work.

"He wanted to help everyone," she said. "It didn't matter what race or religion. Anyone who needed help he was there. Tragically he's lost his life doing what he loved but he wouldn't have stopped.

"Even if he'd come back after this he would've gone out again and again and again. He loved helping people. He was such a bright character. Always making people laugh, telling jokes.

"He was a brilliant man. And he will be remembered like that by everyone who knew him and probably by people who didn't know him.

"He will be remembered and not for the way he was shown in that video, but for the truly amazing work he did."

The teenager said her father's fate hadn't put her off helping others.

"I'm hoping to do some aid work after next year and do a bit of work with a charity," she said. "Hopefully it will spark a career doing that. He'd tell me of all the people he'd helped and I want to do that too."

- Daily Mail, Telegraph Group Ltd