Editing Fritz Haarmann (section)

=== Final year of killing ===
The first victim killed by Haarmann in 1924 was 17-year-old Ernst Spiecker, who disappeared on the 5th January. Although subsequent trial testimony from a friend of Spiecker would indicate Haarmann became acquainted with this youth before his murder, Haarmann stated he would simply have to assume that the teen was one of his victims due to all his personal possessions being found in his or Grans' possession following his arrest. Ten days later, Haarmann killed a 20-year-old man named Heinrich Koch, whom he is also believed to have been acquainted with prior to the man's murder. The following month, Haarmann is known to have killed two further victims: 19-year-old Willi Senger (who disappeared from the suburb of Linden-Limmer on 2 February, having informed his sister he was to travel with a friend) and 16-year-old Hermann Speichert (who was last seen by his sister on the 8th February).

Haarmann is not known to have killed again until about the 1st April, when he is believed to have killed an acquaintance named Hermann Bock. Although cleared of this murder at his trial, Haarmann was in possession of Bock's clothing when arrested, and he is known to have given the teen's suitcase to his landlady. Moreover, Haarmann is known to have actively dissuaded several of Bock's acquaintances from reporting the teen's missing. One week later, on the 8th April, 16-year-old Alfred Hogrefe disappeared from Hanover station, having run away from home in the town of Lehrte on the 2nd April. Hogrefe's murder would be followed 9 days later by that of a 16-year-old apprentice named Wilhelm Apel, whom Haarmann encountered on his "patrols" of the Hanover-Leinhausen station.

On the 26th April, 18-year-old Robert Witzel disappeared after borrowing 50 Pfennigs from his mother, explaining he intended to visit a travelling circus. Enquiries by the young man's parents revealed their son had accompanied an "official from the railway station" to the circus. Haarmann himself would later state he killed Witzel the same evening and that he had dismembered the young man's body, then he had thrown the remains into the Leine River.

Two weeks after, Haarmann killed a 14-year-old named Heinz Martin, who was last seen by his mother on the 9th May and is believed to have been abducted from Hanover station. All his clothing was later found in Haarmann's apartment. Less than three weeks later, on the 26th May, a 17-year-old travelling salesman from the town of Kassel named Fritz Wittig, whom Haarmann would later state he killed upon the insistence of Grans as he had worn a "good new suit" Grans coveted, was dismembered and discarded in the Leine River. The same day, Wittig is believed to have been killed, Haarmann killed his youngest known victim, 10-year-old Friedrich Abeling, who disappeared while truant from school. His murder would be followed less than two weeks later by that of 16-year-old Friedrich Koch, who was approached by Haarmann on the 5th June as he walked to college. Two acquaintances of Koch would later testify at Haarmann's trial that, as they walked with Koch to college, Haarmann approached Koch and tapped the child on the boot with his walking stick and stated: "Well, boy, don't you recognize me?"

Haarmann killed his final victim, 17-year-old Erich de Vries, on the 14t June. De Vries encountered Haarmann at Hanover station. His dismembered body would later be found in a lake located near the entrance to the Herrenhausen Gardens. Haarmann would confess that it had taken him four separate trips to carry de Vries's dismembered remains to the location he had disposed of them.