The man who was beheaded by an ISIS fanatic at a factory in France has been named as Herve Cornara. Pictured left, Cornara was the boss at ATC-colicom in Chassieu - near the scene of yesterday's horrific execution. His head was found pinned to the gates at the American-owned Air Products factory in Saint-Quentin-Fallavier. It was surrounded by two Islamist flags Cornara ran his own business offering a delivery service. Four people were in custody in connection with his beheading, and for setting off the explosion at the Air Products gas factory in south-eastern France. A spokeswoman for the Paris prosecutor's office today confirmed that one of the four suspects detained has been released, while the suspected assassin isn't speaking to investigators.Herve Cornara - boss of the ATC-colicom in Chassieu - has been identified as the man beheaded in France on FridayShocking attack took place at the headquarters of American-owned Air Products close to Lyon in southern FrancePolice seized woman at home of ‘ISIS fanatic’ who beheaded boss and scrawled on his severed head in ArabicAlleged killer has been named as father of three Yassine Salhi, 30, with the victim believed to be his employerThe company both men worked for is understood to have regularly delivered to the Air Products factoryDelivery driver's wife later claimed that Salhi was a 'normal Muslim' who left for work as usual at 7am today 
 Question:'The terrorist threat is at a maximum', he wrote, adding that _ 'must make every effort to protect its citizens'.
France