Austin, Texas in 1991 seemed to be an idyllic place to raise a family; a mid-size, cosmopolitan city with a relatively low crime rate. But that image was shattered when four teenage girls lives were taken under strange and suspicious circumstances. This is the unsolved case of the deaths of Jennifer Harbison, Sarah Harbison, Eliza Thomas, and Amy Ayers. If you have any information on this cold case you can call in a tip to 512-472-TIPS.