Watch this archive video footage of forensic officers searching near the Regent's Canal lock during their investigation into the death of Gemma McCluskie.
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Murder investigation launched in Belsize Park after a woman dies in hospital from injuries.
Police launch a manhunt for an escaped violent sex offender after a boy was attacked and woman had her hair 'sprayed red' in west London.
A man has been rushed to hospital after a stabbing in broad daylight in West Kensington.