On EP 29: Bind Torture Kill Kelsey tells Sierra all about the infamous serial killer Dennis Rader AKA BTK. Listen and find out how he avoided being found out for decades until DNA finally brought him down. 

Sources:
https://en.wikipedia.org/wiki/Dennis_Rader
https://www.gadsdentimes.com/article/DA/20050318/News/603215286/GT
https://web.archive.org/web/20140715092621/http://www.foxnews.com/story/2005/02/27/cops-make-arrest-in-btk-probe/
https://www.biography.com/crime-figure/dennis-rader