A German doctor specializing in palliative care has been sentenced to life in prison for the murder of 15 individuals. The doctor, identified as Johannes M to comply with privacy regulations, was found guilty by a Berlin court for the deaths of 12 women and three men during home visits spanning from September 2021 to July 2024. The victims, ranging from 25 to 94 years old, were administered a lethal mix of sedatives by the doctor, who also attempted to conceal the crimes by setting fire to their residences on multiple occasions.
The presiding judge, Sylvia Busch, expressed concerns that the 15 murders uncovered so far could be just the beginning, with ongoing investigations into the deaths of 76 other individuals. Describing Johannes M as a “serial killer,” the judge emphasized the unprecedented and complex nature of the case.
Due to the severity of the crimes, the court ruled out any possibility of a sentence review after 15 years and ordered preventive detention following the completion of the prison term. Additionally, the doctor was prohibited from practicing medicine in the future.
Prosecutors characterized the doctor as having a “desire for murder” and no apparent motive other than the act of killing itself. The mother of the youngest victim, a 25-year-old woman, emotionally testified in court, stating that her daughter never indicated a wish to end her life.
Evidence presented in court revealed that Johannes M deliberately administered a combination of drugs that induced respiratory failure and death within minutes. The doctor’s criminal activities culminated in the murders of a 75-year-old man and a 76-year-old woman in different Berlin districts on July 8, 2024, with an unsuccessful attempt to set fire to the latter crime scene.
In a surprising turn of events, Johannes M confessed to the murders during a court appearance, expressing remorse and acknowledging the distress he had caused. Initial suspicions regarding the doctor’s actions arose from concerns raised by care services, leading to a subsequent police inquiry and his arrest in August 2024.
Originally focusing on four cases, investigators uncovered a growing number of suspicious deaths linked to Johannes M. If proven guilty of the additional deaths under investigation, the doctor could potentially be recognized as one of Germany’s most prolific serial killers, as reported by German media outlets.

