The incident unfolded when Dejean exited his vehicle to assist after a collision caused by a rented Polish luxury car, leading the suspect to pull out a gun and fire multiple times.

Prosecutor Eric Vaillant confirmed that verification of the suspect's identity is ongoing, as Diallo has a known criminal history involving theft, violence, and drug trafficking.

Diallo, 25, had previously been involved in violent incidents while incarcerated, raising concerns about his potential for further violence.

A European arrest warrant was issued for Diallo shortly after the incident, underscoring the urgency of the investigation.

The incident has drawn attention to a troubling rise in gang-related violence in Grenoble, with authorities reporting at least 17 shootings linked to drug trafficking conflicts in 2024.

Lilian Dejean, a dedicated municipal worker in Grenoble, was tragically shot dead on September 8, 2024, while attempting to detain a driver involved in a road accident.

Dejean was shot in the chest twice by the suspect, resulting in his death, which has deeply affected his colleagues and the local community.

The suspect, identified as Abdoul Diallo, was arrested in Portugal on November 21, 2024, under a European arrest warrant issued following the shooting.

This arrest was made possible through collaboration between French police and European judicial authorities, highlighting the effectiveness of international cooperation.

In the wake of Dejean's murder, a public march was held in Grenoble to honor his memory and express community outrage over the escalating violence.

Grenoble's mayor, Eric Piolle, expressed relief at the suspect's arrest and reiterated support for Dejean's family, who have been enduring significant hardship since the tragedy.

In a show of solidarity, a crowdfunding campaign initiated by the CGT union raised nearly €30,000 to support Dejean's wife and two children after his untimely death.