But his wife Gu Kailai has already been sentenced to death with reprieve for killing Heywood.

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Two other members of the gang were also convicted - one received a death sentence with reprieve and the other eight years in prison.

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Reprieve, a legal charity that works with people facing the death penalty, says the men were subjected to beatings and electric shocks - in one case administered to the testicles - and threatened with guns held to their heads.

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