Marathon runner Claire Squires had performance enhancing ingredient DMAA in her water bottle, an inquest into her death has heard.
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Scotland Yard say a 73-year-old man has been arrested in West Sussex on suspicion of sending offensive messages on social media.
Ian Stewart, the fiancé of children's author Helen Bailey has been found guilty of her murder.
Actor Harrison Ford had a near miss at a Californian airport after landing a plane on a taxiway.