title: Anna Marie Hahn
text: Anna Marie Hahn (born Filser; July 7, 1906 – December 7, 1938) was a German-born American serial killer.
  
  Biography
  
  Early life
  Anna Hahn was the youngest of twelve children though five of her siblings had died by the time Anna was born. Her father, George Filser, was a furniture manufacturer, and the family was considered to be well-off financially.
  
  At age 19, she became pregnant with her son Oskar, and told her family that the father was a Viennese physician, Dr. Max Matscheki, a well-known cancer researcher. However, no record of a Dr. Matscheki has ever been found; to this day, the identity of Oskar's real father is unknown. Hahn's scandalized family sent her to the U.S. in 1929, while her son remained in Bavaria with her parents. While staying with relatives Max and Anna Doeschel in Cincinnati, Ohio, Hahn met fellow German immigrant Philip Hahn; they married in 1930. Hahn briefly returned to Germany to retrieve Oskar, then she and her husband started a family.
  
  Murders
  Hahn allegedly began poisoning and robbing elderly men in Cincinnati's German community to support her gambling habit. Ernst Kohler, who died on May 6, 1933, was believed to be her first victim. Hahn had befriended him shortly before his death. He left her a house in his will.
  
  Her next alleged victim, Albert Parker, 72, also died soon after she began caring for him. Prior to Parker's death, she signed an I.O.U. for $1,000 that she borrowed from him, but after his death, the document was either discarded or simply "disappeared". Jacob Wagner, 78, died on June 3, 1937, leaving $17,000 cash to his "beloved niece" Hahn. She soon began caring for 67-year-old George Gsellman, also of Cincinnati. For her service before his death on July 6, 1937, she received $17,000.
  
  Hahn killed her last victim, Georg Obendoerfer, on August 1, 1937, after he traveled to Colorado Springs, Colorado, with her and her son. Police said that Obendoerfer, a cobbler, "died in agony just after Mrs. Hahn had bent over his deathbed inquiring his name, professing she did not know the man". Hahn's son testified at her trial that he, his mother, and Obendoerfer traveled to Colorado by train from Cincinnati together and that Obendoerfer began getting sick en route.
  
  Investigation 
  An autopsy revealed high levels of arsenic in Obendoerfer's body, which aroused police suspicions. Exhumations of two of her previous clients revealed that they had been poisoned. Hahn was a prime suspect, and was soon arrested.
  
  Hahn was convicted after a four-week trial in November 1937. Sentenced to death, she went to the electric chair at the Ohio Penitentiary in Columbus on December 7, 1938. She was buried in Mount Calvary Cemetery in Columbus.
  
  See also 
   List of serial killers in the United States
  
  References
  
  Further reading
   
   "Anna Marie Hahn", Mind of a Killer (DVD), Kozel Multimedia, 1998.
   Peter Vronsky: Female Serial Killers: How and Why Women Become Monsters, Berkley Books, New York (2007), p. 441
  
  1906 births
  1933 murders in the United States
  1938 deaths
  20th-century executions by Ohio
  20th-century executions of American people
  Burials at Mount Calvary Cemetery (Columbus, Ohio)
  Executed American female serial killers
  Executed German female serial killers
  Executed people from Bavaria
  Emigrants from the Weimar Republic to the United States
  German people executed abroad
  People executed by Ohio by electric chair
  Poisoners
  Serial killers from Colorado
  Serial killers from Ohio
  Violence against men in North America