Halliwell must serve minimum 25 years for Sian murder

Christopher Halliwell must serve a minimum sentence of 25 years for the murder of Sian O'Callaghan.

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Sian taxi murderer gets life

Taxi driver Christopher Halliwell has been jailed for life after admitting the murder of Sian O'Callaghan, who disappeared after a night out in Swindon in March last year. But he escaped justice over a second murder because of a police blunder.