A white march was held in Cergy, Val-d’Oise, in tribute to the victims of the Trappes attack and to Pengo Bossio Wangi. The event took place on Sunday, 15 November 2026. It came after an attack on 23 October 2026, prompting renewed calls for justice for everyone affected. The march gathered participants around the central message of “justice for Pengo, justice for all victims.” A video from BFMTV Police-Justice showed the solemn tribute in the French town of Cergy. No details about the investigation, suspects, arrests, or charges were included in the report.