Grangegorman killings

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The Grangegorman killings were the homicide on 6 March 1997 of Sylvia Sheils and Mary Callinan, patients at St. Brendan's Psychiatric Hospital in Grangegorman, Dublin, Ireland. After giving a false confession, Dean Lyons was charged with the murders and placed on remand. In his statement to the Garda Síochána (police), Lyons gave details that would only be known to the murderer or to the investigators. After Lyons was charged, Mark Nash confessed to the killings, but later retracted his confession. In April 2015, Nash's trial for the murder of Sheils and Callinan began after an unsuccessful attempt to prevent the trial going forward. Lyons was described by one of the gardaí (policemen) involved in the case as a "Walter Mitty" character, and Charles Smith, psychiatrist and director of the Central Mental Hospital, Dundrum, felt that he might be prone to exaggeration and attention seeking. He spent nine months in jail for a crime that he did not commit, and was released after the charge of...

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