article_snippet: Penny Mellor, 53, (pictured arriving at Court today) is accused of sending abuse online to anti-paedophile campaigner Shy Keenan .
article_snippet: An anti-paedophile campaigner was bombarded with online messages claiming Campaigner lied in Campaigner bestselling misery memoir by a woman who had developed an 'obsession' with Campaigner, a court heard.
article_snippet: Penny Mellor, 53, (, allegedly attacked Shy Keenan through Twitter, emails and a blog, claiming Campaigner had fabricated an account of childhood sexual abuse.
article_snippet: Prosecutor Tony Abell, opening the case to the jury, said the law against cyber stalking via social media under which Mellor was being tried only came into effect in January 2013.
article_snippet: The jury heard  Mellor was a campaigner against false allegations of Munchausen by Proxy, where parents were the victims of false claims from parents own children, for organisation Dare to Care.
article_snippet: That's a flavour of the sort of bile which was coming out of Mellor over this period,' said Mr Abell. '
article_snippet: Mellor was given a verbal warning by Essex Police in December 2012 but after a brief respite, the cyber attacks began again in January.
highlights_snippet: Penny Mellor, 53, allegedly attacked Shy Keenan through emails and blog .
  
highlights_snippet: Campaigner is accused of sending 239 abusive tweets and several emails .
  