On 24 September 2021, Vérove received a police summons to provide a DNA sample as part of an investigation into the Bloch killing.

[2] Two days later, Vérove killed himself by barbiturate overdose in a rented flat in Le Grau-du-Roi, Gard.

An only child, Vérove was raised by his strict father, his stepmother and two half-sisters; his birth mother had died of influenza two weeks before the family moved from Gravelines when he was ten years-old.

[10] In 1983, Vérove moved to Paris and joined the National Gendarmerie, serving in the motorcycle squadron of the Republican Guard.

Vérove appeared in 2019 on the show Tout le monde veut prendre sa place on state channel France 2 and told the host that he kept walkers in a Paris park safe.

Less than a month later, on 5 May 1986, 11-year-old Cécile Bloch was also travelling to school when she encountered Vèrove in the elevator of her apartment building, located at 116 Rue Petit in the 19th arrondissement of Paris.

Witnesses who observed Vérove at the apartment building, who included Bloch's parents and half-brother, recalled his face being covered in acne scars; this description was included in facial composites of the suspect and led to the French press dubbing him Le Grêlé (the "Pockmarked Man").

[16] On 27 October 1987, a 14-year-old girl returning home from school was stopped by Vérove, who identified himself as a police officer and claimed he needed to question her for an investigation.

An 11-year-old girl, identified in reports as "Ingrid G.", was cycling along a high-speed railway line when she was approached by Vérove, who demanded that she enter his car on the pretence of being taken to the police station.

In the Politi-Müller case, the suspect had given a false address for "Élie Lauringe" which was traced back to a former office in the 13th arrondissement.

The final confirmed Le Grêlé attack took place in Saclay, where a gendarmerie training centre was located.

[17] Müller's autopsy determined that, before her death, she had had consensual sex with an unidentified man whose semen was recovered from a tampon.

[17] In 2021 Nathalie Turquey, an investigating judge who had taken over the Grêlé case in 2014, requested a summons to be issued 750 gendarmes who had been active in the Île-de-France region at the time of the original crime spree, in which each man was asked to submit a DNA sample.

Vérove rented an apartment in the coastal commune of Le Grau-du-Roi, where he committed suicide by overdosing on alcohol and barbiturates on 29 September 2021.