Source Materials:

https://www.historicalcrimedetective.com/ccca/the-murder-of-william-guldensuppe-1897/

https://archive.vanityfair.com/article/1934/2/the-guldensuppe-murder

https://www.newyorker.com/magazine/1955/09/24/the-case-of-the-scattered-dutchman

https://nypost.com/2011/06/19/headless-body-in-tabloid-city/

https://www.murderbygaslight.com/2019/03/the-east-river-murder.html

https://www.npr.org/2011/06/25/137351785/how-a-new-york-murder-sparked-the-tabloid-wars

https://www.washingtonpost.com/entertainment/books/the-murder-of-the-century-the-gilded-age-crime-that-scandalized-a-city-and-sparked-the-tabloid-wars-by-paul-collins/2011/05/31/gIQAWtCmhI_story.html

www.medium.com/crimebeat/the-sensational-love-triangle-murder-that-revolutionized-tabloid-journalism-11a0f4e81d15