Season 1 of the true crime drama was an adaptation of a 2018 podcast about the Happy Face serial killer, Keith Hunter Jesperson (Quaid). Happy Face 's cast of characters also includes Jesperson's ...

The "Happy Face Killer" was a truck driver who claimed to have killed over 100 people. Eight cases have been confirmed. He is serving a life sentence without the possibility of parole in Oregon.

"Happy Face Killer" Keith Jesperson believes Kohberger's awkwardness and high-profile murder case make him vulnerable, and he's recommending a transfer to Oregon.