Police are renewing their appeal for help to catch the killer of a pensioner from Wisbech.
Una Crown was stabbed to death and her body set on fire at her home in Magazine Lane six months ago.
A £10,000 reward has been offered for information that leads to the conviction of Mrs Crown's killer.
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A total of 1.7 million attacks were carried out against more than 650,000 victims of which just over 52,000 were in the UK.