Yassin Salhi who killed Herve Cornara in 'jihadist attack' hanged himself in French prison

Yassin Salhi who killed Herve Cornara in 'jihadist attack' hanged himself in French prison WARNING GRAPHIC CONTENT: Yassin Salhi, 35, was found dead last night, according to authorities at Fleury-Merogis prison, in the southern suburbs of Paris.