The young man died in hospital where he was admitted on Thursday to receive treatment for critical injuries on the fringes of an event held by LFI MEP Rima Hassan. Quentin D, 23, succumbed to a traumatic brain injury following a violent assault in Lyon, authorities confirmed. The attack occurred on the sidelines of a conference hosted by Hassan at the Institute of Political Studies (Sciences Po), the Lyon prosecutor’s office told AFP.
Quentin was part of the security team assigned to protect activists from the right-wing group Collectif Némésis, who were protesting the visit of the left-wing La France Insoumise (LFI) politician to the city. He suffered multiple severe blows to the head and was placed in a medically induced coma after sustaining a concussion. Hospital staff described his condition as critical before he passed away.
The Lyon Public Prosecutor’s Office has opened an investigation into the incident, which is now being treated as aggravated manslaughter. Authorities said the attackers have not yet been identified, and police are continuing efforts to locate those responsible.
French President Emmanuel Macron expressed his condolences and extended the nation’s support to Quentin’s family. Writing on X, he denounced the “unprecedented outburst of violence” and emphasised that killing over ideological differences is never justified in the French Republic.
“On the contrary, the very purpose of our institutions is to civilise debates and protect the free expression of arguments,” Macron wrote. He vowed that those responsible for the assault would be brought to justice and added, “The hatred that kills has no place among us.” The president concluded by calling for calm, restraint, and respect during this difficult period.
Politicians from across the spectrum condemned the attack. Some right and far-right figures criticised far-left and anti-fascist activists, with Bruno Retailleau, leader of The Republicans, saying, “The beating to death of Quentin by ultra-left militants is horrifying evidence of the extreme violence that reigns in the satellites that gravitate around LFI.” Far-right leader Marine Le Pen called for the government to treat such groups as terrorist organisations.
LFI figures defended the party, with coordinator Manuel Bompard urging the public not to implicate Hassan or La France Insoumise in the attack. Hassan herself condemned the assault and stated that her party’s security personnel were not involved.
In the days following the incident, multiple LFI offices across France were vandalised, reflecting the heightened tensions in the aftermath of the attack. Authorities have increased security around political events as the investigation continues.
Quentin’s death has sparked a national debate over political violence in France, highlighting the risks faced by those working to ensure safety at public gatherings and the broader societal challenge of containing ideological extremism.