THE ATTACK ON THE PARIS POLICE HEADQUARTERS | M6 | 66 minutes

Last Thursday, Michael Harpon, IT specialist at police headquarters stabbed four of his colleagues to death before being shot. How was he able to act thus in a building considered to be one of the most high-security in France? Who was he? Aged 45, Michael Harpon was deaf and slightly handicapped. Was this calm man, appreciated by his colleagues, the victim of a sudden access of madness as suggested by his wife when interviewed in custody. According to her, he heard voices the previous night. Or was he a lone wolf carrying out a planned assassination? They say he converted to Islam more than ten years ago. He was due to appear before his superior to explain his recent radicalisation. Frustration, insanity or terrorism, what was the route taken by this man, an expert on secret defence and employed in an information department?