Matthew Woods, 19, from Lancashire, has been jailed for 12 weeks after admitting making grossly offensive comments on his Facebook page about missing five-year-old April Jones.
He made a number of derogatory and explicit posts about April and Madeline McCann.
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Prisoners in HMP Shewsbury have donated a bench in memory of missing five-year-old April Jones.
More than two hundred people took part in a charity walk to raise money for the April Jones Fund.
As the search for missing five year old April Jones continues, well-wishers light candles and lanterns for her.