A RESPECTED GEORGIA PROFESSOR IS FOUND DEAD IN A HOT TUB AFTER A GET-TOGETHER - HER BOYFRIEND SAYS "EVIL CAME TO PLAY" THAT NIGHT - WHAT REALLY HAPPENED?

"48 Hours" Investigates in "The Strange Death of Professor Shockley"

A popular University of Georgia professor, Marianne Shockley; her boyfriend, Marcus Lillard; and a former psychologist, Clark Heindel, got together one night in May 2019 for a dip in a hot tub and to listen to music. Hours later, the professor and the psychologist were dead and only the professor's boyfriend was alive. 48 HOURS contributor Jonathan Vigliotti investigates what happened that night in "The Strange Death of Professor Shockley," to be broadcast Saturday, Oct. 15 (10:00 PM, ET/PT) on the CBS Television Network and streaming on Paramount+.

When sheriff's deputies arrived at the home of Clark Heindel in Milledgeville, Ga., they discovered a chaotic scene where Lillard and Heindel attempted to perform CPR on Shockley. While deputies investigated the scene, authorities say Heindel slipped into the house and took his own life. Within a day, Lillard was charged in his girlfriend's death.

"There is good and there is evil and that night ... evil came to play," Lillard tells Vigliotti in an exclusive interview.

Lillard told investigators he had nothing to do with Shockley's death and a jury acquitted him. Her family doesn't believe him. So, what happened that night?

"The very first thought was, he had to have had something to do with this ... Why would he kill himself?" Lillard says of Heindel. "There's something he's hiding."

48 HOURS: "The Strange Death of Professor Shockley" is produced by Paul LaRosa. Elizabeth Caholo and Ryan Smith are the development producers. Morgan Canty is the associate producer. Jordan Kinsey is the field producer. Doreen Schechter, George Baluzy and James Taylor are the editors. Anthony Batson is the senior broadcast producer. Nancy Kramer is the executive story editor. Judy Tygard is the executive producer.

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