The Strange Death of Professor Shockley

Murder Files Unsealed · Aug 4, 2026 · 43m · transcript

This episode details the suspicious 2019 death of University of Georgia professor Marianne Shockley, who was found unresponsive in a friend's hot tub. The investigation initially focused on two men present that night: her boyfriend, Marcus Lillard, and the homeowner, Clark Heindel, the latter of whom committed suicide shortly after authorities arrived. While an autopsy pointed to manual strangulation, Lillard maintained his innocence, suggesting the death was a result of a drug-induced accident or Heindel's actions. During the subsequent trial, prosecutors highlighted Lillard’s history of…