But as Otak's back was turned, Ms Frank told Mr Bahrami she was being held at knifepoint.

BBC: Ahmad Otak jailed for 34 years for murdering two teenagers

Elisa Frank, Otak's ex-girlfriend, told Harratt's trial that she watched as Otak stabbed her sister to death.

BBC: Steven Harratt jailed for assisting Wakefield murderer

He wrestled the knife from Otak, fled to nearby houses with Ms Frank and the police were called.

BBC: Ahmad Otak jailed for 34 years for murdering two teenagers

Otak forced Miss Frank to travel with him but was arrested after she raised the alarm in Dover.

BBC: Steven Harratt jailed for assisting Wakefield murderer

This, she explains to the class at her Cookery Magic school, will be an integral part of the first dish, otak-otak.

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Steven Harratt was found guilty earlier this year of helping Ahmad Otak.

BBC: Steven Harratt jailed for assisting Wakefield murderer

Otak was sentenced to a minimum of 34 years in prison last year for murdering 17-year-old Kimberley Frank and Samantha Sykes, 18, in Wakefield.

BBC: Steven Harratt jailed for assisting Wakefield murderer

The court heard that, while Harratt did not know exactly what Otak had done, he must have realised that he had committed a serious offence.

BBC: Steven Harratt jailed for assisting Wakefield murderer

Harratt gave Otak money, clothing, food and a sat-nav to help him get to Dover in Kent and try to leave the UK after the murders.

BBC: Steven Harratt jailed for assisting Wakefield murderer

Otak then abducted Ms Frank and fled to Dover.

BBC: Ahmad Otak jailed for 34 years for murdering two teenagers