Student Liam Stacey has been sentenced to 56 days in jail after posting a series of offensive comments following footballer Fabrice Muamba's on-pitch collapse. The biology student was arrested after his racially aggressive updates on Twitter came to the attention of other users on the microblogging service, leading to his tweets being reported to the police.  Admitting to inciting racial hatred, the 21-year-old posted the comments shortly after Muamba collapsed...