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Transcript for 'Happy Face Killer' Speaks to '20/20' From Prison in 2010
This transcript has been automatically generated and may not be 100% accurate.
{"duration":"3:00","description":"Convicted serial killer Keith Jesperson tells ABC's Juju Chang what drove him to take victims' lives.","mediaType":"default","section":"ABCNews/2020","id":"11441251","title":"'Happy Face Killer' Speaks to '20/20' From Prison in 2010","url":"/2020/video/happy-face-killer-speaks-prison-talks-interview-murder-murderer-killings-take-lives-Jesperson-11441251"}