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The aid worker, from Lewis, was kidnapped by the Taliban and died in an attempted rescue by US forces in October 2010.

“They had him pressed down on the ground, they had weapons drawn so no one could get near to help him. It just looked like he had been kidnapped,” said witness Yuliza Barraza, 45.

Mrs McKay's body has not been found since she was kidnapped in 1969, taken to a farm in Hertfordshire and killed.

He said he’d been kidnapped and cheated by managers.

His mother was Diana Turbay, a journalist who was killed in 1991 in a rescue attempt after she had been kidnapped by the Medellin drugs cartel run at the time by Pablo Escobar.