Frank Geyer

Frank Geyer (July 28, 1853 – October 4, 1918) was an American police detective from Philadelphia, Pennsylvania, best known for his investigation of H. H. Holmes, one of America's first serial killers. Geyer was a longtime city employee of the Philadelphia Police Department, and in 1894 was assigned to investigate the Holmes-Pitezel Case. He published the story in his book The Holmes-Pitezel Case: a history of the greatest crime of the century and of the search for the missing Pitezel children.

Frank Geyer

Frank Geyer (July 28, 1853 – October 4, 1918) was an American police detective from Philadelphia, Pennsylvania, best known for his investigation of H. H. Holmes, one of America's first serial killers. Geyer was a longtime city employee of the Philadelphia Police Department, and in 1894 was assigned to investigate the Holmes-Pitezel Case. He published the story in his book The Holmes-Pitezel Case: a history of the greatest crime of the century and of the search for the missing Pitezel children.