Fresh DNA evidence in the killing of Chiara Poggi has brought a previously investigated suspect back under scrutiny, raising questions over the conviction

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suspect in a case that has captivated Italy for almost 19 years has been summoned for questioning by prosecutors, in a development that could expose one of the country’s most significant miscarriages of justice and free the person who has spent more than a decade in prison for the crime.

Andrea Sempio is accused of killing Chiara Poggi, a 26-year-old economics graduate, at her home in Garlasco, a small town close to Milan in northern Italy, on 13 August 2007, allegedly because she rejected his sexual advances.

Sempio, who has denied all allegations against him, is expected to appear before prosecutors in Pavia on Wednesday. However, his lawyers have said in a statement to the Italian press that he “will exercise his right to remain silent” owing to the investigation not yet being concluded.