51-year-old Nick Yarris spent more than 20 years on death row in America for a crime he didn't commit. He has now moved to Lincolnshire to be with his fiancee 23-year-old Jessica Stubley who he met through Facebook after she sent him a message of support. He has written a book about his experiences.
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The kind gesture touched the hearts of many who shared and retweeted words of support for the officer on Twitter.
White vehicles on taxi ranks across the East Riding will be sporting green markings and display a Yorkshire rose symbol.
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