@sp1814
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This shows another side to the story, and makes for interesting reading:
http://www.buzzfeed.com/patricksmith/read-the-deleted-tweets-brenda-leyland-sent-the-mccanns?s=mobile#1unk150
11:50 Tue 07th Oct 2014
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Thanks for that link. After 20 minutes of reading the archived timeline, I was surprised to find I'd only got back as far as mid September and there's reams more. Even so there were some remarkable allegations being made and one or two famous name toes being treaded on.
I am intrigued by the fact that she claimed to know Praia de Luz well, at one point disputing claims by another Twitter user that it was a hotbed of vice.
She repeatedly refers to defenders of the McCanns as "Shills" and, in accordance with the standard definition, she was Trolling the "Shills". The McCanns claim to not use Twitter so, unless logging on under guise of a username, they are unable to monitor the (hashtag)mccann debate/timeline and thus the Trolling cannot be said to be aimed -directly- at them.
Nevertheless, if it's defamatory, in print and about you then it is still actionable… once you have a name and address, that is.