Lord McAlpine, who announced he was dropping defamation claims against Twitter users with less than 500 followers, said he wanted to draw the "unfortunate episode" to a close.
He has written to those tweeters and asked them to make a voluntary donation of £25 to the BBC's Children In Need as soon as possible.
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Facebook's automated 'year in review' feature brought up images of some users' relatives who died this year.
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Expect a bright day today with plenty of winter sunshine and clear blue skies across the country.