A Wiltshire Police Detective is currently giving evidence in an inquest into the deaths of Graham Anderson and his two sons, whose bodies were found in a flat in September last year.
Detective Constable Christopher Conway told the inquest that blood was found in the flat. Some of it was Graham Anderson's and some was that of his son Jack.
A post mortem showed both boys had traces of the insomnia drug Zopiclone, which Graham had been prescribed.
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