Mystery of Roman sarcophagus unearthed at Westminster Abbey solved at last, expert says

<p>Archaeologist says skeleton inside coffin inscribed to Valerius Amandinus is likely to be remains of 11th-century abbot</p><p>It has all the ingredients of a chilling mystery: the skeleton of an unknown man discovered within a Roman sarcophagus unearthed in the grounds of Westmi