The results from film director Tony Scott's autopsy could take six weeks and rumours he was diagnosed with brain cancer are "totally false", a spokesman for the Los Angeles Department of Coroner said.
He said: "I spoke with Mrs Scott yesterday and she said that (the rumours) was totally false."
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Endris Mohammed must serve a minimum of 33 years after killing his two children with a petrol-soaked cloth before trying to kill his wife.
Three people who had been arrested on suspicion of murder have been released without any further action.
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