I urge you to look into Krystle's story more. She's an absolutely vile person who participated in the torture and attempted murder of her boyfriend, Brandon Green.
https://thislandpress.com/2013/07/28/subterranean-psychonaut...
https://thislandpress.com/2013/07/28/subterranean-psychonaut...
However, in contrast, I found the This Land article "Subterranean Psychonaut" by Mason, Sandel, and Chapman to be a fascinating and in-depth read. It's replete with endnotes and provides information about Cole's actions after the police picked up Green.