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Trial Opens for Teen Accused of Killing School Supervisor in Haute‑Marne

A prosecution request for 18 years elevates the case as a legal reckoning over how to hold minors responsible for deadly school violence.

Overview

  • The trial began at the juvenile court in Chaumont on Wednesday and is being held behind closed doors with a decision expected during the hearing.
  • Prosecutors asked Thursday for 18 years of réclusion criminelle and asked the court not to recognize an altered state of discernment for the accused who was 14 at the time of the June 10, 2025 killing.
  • Because he was under 16 when the crime occurred the defendant faces a maximum sentence of 20 years and remains in pretrial detention.
  • The defence has requested psychological and psychiatric expert assessments to examine the teen's mental state while the public prosecutor cites lack of remorse and a reported fascination with violence.
  • The killing prompted local mourning, a march of about 1,500 people, and renewed national proposals to restrict social media access for under‑15s as policymakers and families demand tougher responses.