Yassine Salhi, who was arrested this week on suspicion of decapitating his boss, is alleged to have sent a selfie with the dead man’s severed head, Agence France Presse reports.

At least one person was killed and two more were injured Friday during an attack at a gas factory near Lyon, France. The victim was decapitated, and a message—reportedly written in Arabic—was found inscribed on or near his body.