Martin Ney, the German serial killer already serving a life sentence for the murders of three boys in northern Germany, appeared in a French courtroom on Tuesday to face charges over the abduction and killing of a 10-year-old boy during a school trip in 2004. The trial in Saint-Nazaire, western France, marks the culmination of a two-decade-long legal saga that has tested cross-border police cooperation.
Ney, now 55, has been charged with murder and kidnapping in the disappearance of Jonathan Coulom, whose body was discovered more than a month after he vanished from a seaside holiday camp in Saint-Brevin-les-Pins, Loire-Atlantique. The boy's bed was found empty when his roommates woke up; his remains were later recovered from a pond near Guérande, weighted down by a concrete block, with a cord tied around his neck, feet, and hands.
A Pattern of Crimes Across Borders
Ney, who earned the moniker “the man in black” for his habit of wearing masks and balaclavas during attacks, was sentenced to life imprisonment in Germany in 2012 after confessing to the murders of three boys aged 13, eight, and nine between 1992 and 2001. Those crimes occurred in the states of Lower Saxony and Schleswig-Holstein. Yet he has consistently denied any involvement in Jonathan's death, claiming he was not in France at the time.
German authorities first alerted French investigators in the weeks after Jonathan's disappearance, noting striking similarities between the case and a series of child abductions and murders attributed to the “man in black.” Despite this early lead, the investigation stalled for years. Ney was arrested in 2011 but refused to answer questions about the French case.
The breakthrough came in 2017, when a former cellmate of Ney's came forward. The man claimed that Ney had confessed to killing a child in France, expressing surprise that he had not been identified by a person he encountered at the time. Those statements echoed the testimony of a farmer who, in 2004, reported seeing a man driving a sedan with German licence plates near the crime scene on the evening of the abduction.
Ney was transferred to France in 2021 and placed under formal investigation. The trial now represents what Caty Richard, a lawyer representing Jonathan's grandmother, described to AFP as the possible end of a “very long legal journey.” She added that the family hopes Ney will “finally take responsibility and provide explanations.”
The case has drawn attention to the challenges of prosecuting serial offenders whose crimes span multiple jurisdictions. While Ney's German convictions were secured through his own confessions, the French trial will rely heavily on circumstantial evidence and witness testimony. The defence is expected to challenge the credibility of the former cellmate's account.
Jonathan's family, who have waited nearly two decades for this day, are seeking not only a conviction but also closure. The trial is scheduled to last several weeks, with a verdict expected by late April. If found guilty, Ney faces an additional life sentence in France, though any term would be served in Germany under existing extradition arrangements.
This case is a stark reminder of the human cost of cross-border crime and the slow, painstaking work of European judicial cooperation. For the Coulom family, the trial offers a final chance to hear the truth from the man they believe took their son's life.


