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A prison leaver unlawfully killed a woman at a hostel in Caerphilly county before he died suddenly as a result of taking drugs and struggling against police restraint, an inquest has heard.

Matthew Williams was found attacking Cerys Yemm, 22, at the Sirhowy Arms Hotel in Argoed on 6 November 2014.

Police officers stunned Williams, 34, with a Taser but he later died.

Their families want lessons to be learned, while a watchdog inquiry said police used reasonable force.

Caroline Evans reports.