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‘Maschseemörder’ Arrested in Düsseldorf on Urgent Suspicion of Hostage-Taking After Girlfriend’s Allegations

The 37-year-old returned to custody after the girlfriend reported assaults over the holidays.

Overview

  • Bundespolizei officers detained Alexander K. on January 11 at Düsseldorf Hauptbahnhof, and he is back in custody under an arrest warrant.
  • The Düsseldorf prosecutor’s office cites urgent suspicion of hostage-taking and dangerous bodily injury, with investigations ongoing.
  • The girlfriend reports two incidents: alleged strangulation during a dispute on December 22 and being held in her apartment on January 1 to force access to her phone.
  • She says he injured her thumb and threatened to cut it off with a saw, clarifying it was a simple saw rather than a chainsaw as some reports claimed.
  • K., convicted in 2012 for murdering Andrea B. and released in May 2025, had posted disturbing videos post-release; the victim’s son filed 41 complaints as some were removed from TikTok while others remained on other platforms.