the park might have been. >> and crystal is dead. c-styles is serving time for another murder and nothing is happening to derek. >> nothing was happening to derek that i could see. but i'm a believer of karma. either in this life or the next. you're going to pay for what you've done wrong. >> i'm guessing you were preferring it was this life? >> yes. >> maybe it was karma. maybe it was luck. maybe it was good police work. but whatever it was, on june 15th, 2011, l.a. sheriff's detectives richard lopez and his partner beth smith found themselves at a northern california prison with a few hours to kill. >> she mentioned that, "skyler moore's here and i always wanted to talk to him about a 2001 murder that occurred at hawthorne." >> that would be crystal taylor's murder. detective smith had worked with hawthorne pd on the case. she knew derek smyer would never spill. but would c-styles? >> i said, "we got three hours till the plane ride. let's pull him."