Quellen:
Stern Crime Nr.10
https://en.wikipedia.org/wiki/H._H._Holmes
https://clickamericana.com/topics/crime/h-h-holmes-hanged-for-his-many-crimes-1896
https://allthatsinteresting.com/hh-holmes-hotel
https://www.biography.com/news/hh-holmes-victims
https://www.spiegel.de/geschichte/henry-howard-holmes-serienkiller-baute-mord-hotel-a-1044624.html