In 1997, Cary Stayner was a handyman at the Cedar Lodge motel in El Portal, California, just outside the Highway 140 entrance to Yosemite National Park.  He was convicted of the murders of four women in 1999, Carole Sund, Julie Sund, Silvina Pelosso, and Joie Armstrong.  Cary was sentenced to death and is still on death row at San Quentin State Prison in California.

Website: https://www.drinkingthecoolaid.com/
Resources:

• What Is Yosemite Killer Cary Stayner's Life Like Today? - A&E True Crime (aetv.com) 
• Cary Stayner - Wikipedia 
• Amazon.com: The Yosemite Killer: Life of Serial Killer Cary Stayner (Serial Killer True Crime Books Book 27) eBook : Smith, Jack: Kindle Store 
• Hulu | Series 
• Trail of Terror | FBI: Criminal Pursuit | Discovery 
• Cary Stayner | Murderpedia, the encyclopedia of murderers 
• "FBI: Criminal Pursuit" Trail of Terror (TV Episode 2011) - IMDb 
• Confessed Yosemite killer sent apology to families, paper says - Deseret News 
• The case of a lifetime / For Cary Stayner, there was something about Jeff Rinek that put him at ease - and made him want to talk (sfgate.com) 
• An FBI Agent Recounts a Repulsive Request by Serial Killer Cary Stayner During His Interrogation - A&E True Crime (aetv.com) 
• Paraphilia - Wikipedia