https://en.wikipedia.org/wiki/Thomas_Silverstein

https://www.nytimes.com/2019/05/21/obituaries/thomas-silverstein-dead.html

https://murderpedia.org/male.S/s/silverstein-thomas.htm

https://edition.cnn.com/2019/05/23/us/colorado-thomas-silverstein-dies/index.html

https://www.peteearley.com/2023/04/03/born-bad-or-made-bad-did-years-of-abuse-as-kids-turn-thomas-silverstein-and-clayton-fountain-into-killers-or-genetics/

https://en.wikipedia.org/wiki/ADX_Florence

https://www.identiv.com/resources/blog/the-worlds-most-secure-buildings-adx-florence-prison

https://www.bop.gov/locations/institutions/flm/

https://people.howstuffworks.com/adx-florence.htm

https://www.uncovercolorado.com/activities/alcatraz-of-the-rockies-usp-florence-admax/

https://www.nytimes.com/2015/03/29/magazine/inside-americas-toughest-federal-prison.html

https://sometimes-interesting.com/adx-florence/

https://dozr.com/blog/how-its-built-alcatraz-island

https://en.wikipedia.org/wiki/James_Marcello#:~:text=On%20September%2010%2C%202007%2C%20Marcello,extortion%2C%20loan%20sharking%20and%20murder.

https://www.forbes.com/profile/joaquin-guzman-loera/

https://www.worldometers.info/gdp/gdp-by-country/

https://law.justia.com/cases/federal/appellate-courts/F2/737/864/233164/