The Servant Girl Annihilator case - In the late 1800s, a serial killer known as the Servant Girl Annihilator terrorized the city of Austin, murdering several young women in their homes. The killer was never caught.
The Austin Yogurt Shop Murders case - In 1991, four teenage girls were murdered in a yogurt shop in Austin. Despite a lengthy investigation and multiple trials, the killer has never been identified.
The Debra Baker case - In 1984, Debra Baker, a young mother, was found murdered in her Austin home. Her killer has never been identified.
The Mauriceo Brown case - In 2006, Mauriceo Brown, a college student, was shot and killed outside a convenience store in Austin. His killer has never been identified.
The Roxanne Paltauf case - In 2006, 18-year-old Roxanne Paltauf disappeared from an Austin motel. Her remains were found in 2012, but her killer has never been identified.