In 1993, 16-year-old Rayna Rison walked out of her after-school job and vanished.

Thirty-three days later, her body was found in a pond. No signs of trauma. No suspect in custody.

For decades, the case haunted LaPorte, Indiana—tainted by rumors of sexual abuse, cover-ups, and silence.

Then in 2014, prosecutors convicted Jason Tibbs, Rayna’s former middle school boyfriend. Case closed. Or so it seemed.

But now, a new investigation raises disturbing questions: Was Tibbs the wrong man? Did the real killer slip through the cracks?