article_snippet.sent: DNA evidence corroborated by an autopsy revealed ‘strangulation and sexual violence’, said Mr Valensi.
article_snippet.sent: Shocking: Prosecutor Jean-Pierre Valensi (pictured) said forensic investigators reported evidence of 'strangulation and sexual violence', and that the Polish man in question had admitted to the killing .
article_snippet.sent: French Prime Minister Manuel Valls called for light to be shed on the suspect's history, saying the family and community were 'deeply shocked' by the murder. '
article_snippet.sent: It is up to the legal system now to carry out the investigation and what the family and community owe to the family and community is the whole truth,' French Prime Minister Manuel Valls said.
highlights_snippet.sent: Prosecutors say there is evidence of 'strangulation and sexual violence'
  Polish immigrant, who was heading to England, has admitted to killing .