Shahidul Ahmed, 41, was given a life sentence with a minimum term of 17 years at Luton Crown Court for the murder of 19-year-old Rachel Manning, whose boyfriend Barri White was wrongly convicted of the killing.
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Joshua beat the older, more experienced boxer in front of 90,000 fans in Wembley Stadium.
Dry for most of the night. Rain in the southwest by dawn.
Host Paddy McGuinness tweeted a tribute to contestant Charlie Watkins whose date was featured in Saturday's episode.