Mary Ann Rotondi

Dec 1, 2024 | yahoo.com | Peter Van Sant |Mary Ann Rotondi |Chris Young Ritzen

This story originally aired on Jan. 20, 2024. Cayley Mandadi, 19, was a sophomore at Trinity University when she was brought to a Texas hospital on Oct. 29, 2017. She was nearly naked, bruised and not breathing. Her sometime boyfriend Mark Howerton told doctors they'd taken ecstasy at a music festival and she passed out after consensual sex in his car. She died at the hospital.

Aug 22, 2024 | yahoo.com | Erin Moriarty |Lisa Freed |Sarah Prior |Mary Ann Rotondi

This story originally aired Nov. 20, 2021. it was updated on Jan. 21, 2023. When Chelsea Rustad uploaded her DNA on a public database, she never expected two police investigators would appear on her doorstep. "They let me know that they are investigating a family member of mine for murder," she tells "48 Hours" correspondent Erin Moriarty.