Police have confirmed the names of a mother and son found dead at a house in Bolton-le-Sands as 41-year-old Lisa Clay and her six-year-old boy Joseph Chadwick.
A post-mortem examination carried out last night revealed that they both died from multiple stab wounds.
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Ming Jiang, 42, from Beswick, Greater Manchester, appeared before magistrates in Chesterfield on Monday.
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Make sure your family enjoys Halloween by following this safety advice and ensure you know what to do if a costume catches fire.