A Berlin palliative care doctor was sentenced to life in prison on Wednesday for the murders of 15 patients, with prosecutors now investigating whether he is responsible for dozens more deaths in what could become one of Germany’s largest serial killing sprees. The 41-year-old physician, identified only as Johannes M. under German privacy laws, was convicted of killing 12 women and 3 men between September 2021 and July 2024. The court ordered him held in preventive detention after his prison term and imposed a lifetime ban from practicing medicine, citing “particularly serious guilt.”
Prosecutors revealed that the victims—ranging in age from 25 to 94—were all critically ill but not facing imminent death. During home visits, Johannes M. administered lethal cocktails of drugs without patient consent, and on several occasions, set fires to destroy evidence. The day before his arrest in July 2024, he killed a 75-year-old man in central Berlin and, hours later, a 76-year-old woman in a neighboring district, attempting to torch her home. The court heard that the doctor confessed last month, claiming he believed he was “sparing them suffering.” He apologized, saying, “Throughout it all, I thought this was the best thing for everyone.”
Authorities are now investigating 76 additional patient deaths linked to Johannes M., according to German media. If proven, the total would eclipse previous mass murder cases in the country. The doctor has indicated he will cooperate “much earlier” in upcoming proceedings. Relatives of victims testified with raw emotion: the mother of the youngest victim, a 25-year-old woman who died in 2021, sobbed in court, insisting her daughter “never said she didn’t want to live anymore.” The son of a 72-year-old victim recalled his mother’s plans to visit the Baltic Sea, stating, “My mother wanted to keep on living.”
The case has reignited debates over end-of-life care and patient protections in Germany. Legal experts note that the preventive detention order means Johannes M. will remain incarcerated even after serving his life sentence, a rare measure reserved for offenders deemed an ongoing threat. The Berlin court’s ruling sends a stark warning to medical professionals, while the ongoing investigation into the 76 other cases ensures this story will dominate headlines for months. For the families, justice remains incomplete as they grapple with the scale of the betrayal by a man sworn to heal.