Today is the 39th birthday of York chef Claudia Lawrence who has been missing since March 2009.
“I cannot believe that we are yet again at another birthday for Claudia and there is still no news as to what has happened to her," said Martin Dales, who is Claudia’s father Peter Lawrence's spokesman.
"All anniversaries are hard for the family and friends to cope with and it is unacceptable that there is still no closure – good or bad.
“So I make a further appeal to those who know these answers.
"How can you sleep at night knowing you know the answer?
“ How can you live the lie with yourselves?
“ Have you no feelings for those who are suffering because of your misguided silence?
“Do what you know in your heart of hearts what is right and end the misery of all those who love and care for Claudia even if you don’t.”
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