On Saturday July 3, 1976, sweet little blond Marion Ketter, 4, went missing. By the next day, police had Joachim Kroll in custody after someone at #11 Friesenstrasse told a police officer that Kroll had warned that the toilet was plugged with “guts.” It turned out that the likable, but not very intelligent, Kroll, affectionately called "Uncle" by the neighborhood children, had a propensity for rape and murder, and a taste for human flesh that went back more than twenty years.
On June 4, 1962, 12-year-old Monika Tafel was killed by Joachim Kroll. Kroll had grabbed her as she was walking to school. After Kroll had finished with her, he removed pieces from her buttocks and thighs.
On February 8, 1955, Joachim Kroll killed the first victim of his 20-year tear. Neighbors thought he was likeable, but not very smart, and the children, even those would become his victims, called him "uncle".