Maschsee murderer arrested again: New dangers for society?
Alexander K., who killed a prostitute in Hanover in 2012, was arrested again after his release from prison.

Maschsee murderer arrested again: New dangers for society?
On January 20, 2026, the case of the so-called “Maschsee murderer” Alexander K. will once again cause excitement in Lower Saxony. K. brutally killed a prostitute in Hanover in 2012 and disposed of the body in the Maschsee. For this crime, he was sentenced to twelve years in prison in 2013 and was classified as having reduced criminal responsibility due to a severe personality disorder and drug abuse. After his release he had to go underground Leadership supervision live, which aims to provide aftercare for perpetrators in order to prevent new crimes.
The conduct supervision takes effect after a prison sentence of at least two years has been fully served for intentional crimes. In K.'s case, this came automatically after the end of his imprisonment. It includes specific instructions and regular monitoring to ensure that ex-offenders do not commit further offenses. This includes, among other things, the appointment of a probation officer and drug and alcohol tests.
Latest arrest
K. made headlines again when he was arrested on January 11, 2026. He is suspected of strangling his partner on December 22, 2025 and threatening her with death on New Year's Day. When he was arrested he was armed and had several knives on him. The exact circumstances of the “dangerous tool” used in this threat are still unclear. Prosecutors denied reports of a chainsaw being used in some media outlets.
This renewed escalation throws a sharp light on K.'s culpability. The public prosecutor's office will now be forced to clarify this again. If the allegations are proven, he faces a prison sentence of at least five years for taking hostages and up to ten years for grievous bodily harm. A new report will be required for the upcoming trial.
Life after prison
After his release from prison, K. lived with his partner in Düsseldorf. Fears about his return to violence are not unfounded, as his recent behavior shows. The reasons that lead to remaining under supervision are varied - above all, it is about securing and improving both the perpetrator and society. This measure can be ordered by the Penal Enforcement Chamber and is handled differently in different federal states in Germany.
The public is curious to see what the further course of the trial will look like and whether Alexander K. will escape the legal consequences this time or whether he will be imprisoned again. This represents a nerve-wracking time for those affected by his actions as authorities try to ensure safety for everyone.