Key moments in the investigation of Austin's yogurt shop murders

48 Hours Key moments in the investigation of Austin's yogurt shop murders .chip { background-image: url('/fly/bundles/cbsnewscore/images/chip-bgd/chip-bgd-48-hours.jpg'); } August 25, 2022 / 9:47 AM EDT / CBS News Add CBS News on Google CBS News affiliate On Dec. 6, 1991, a fire was reported inside an I Can't Believe It's Yogurt! shop in Austin, Texas. Once the fire was extinguished, investigators made a discovery inside the store that haunts the city to this day.   Young lives cut short AP Inside the yogurt shop were the charred bodies of four teenage girls ranging from 13 to 17 years old. The victims clockwise from top left, Amy Ayers, Eliza Thomas, Sarah Harbison and Jennifer Harbison.Jennifer and Eliza were working in the yogurt shop. Jennifer's younger sister Sarah and Sarah's friend Amy Ayers were visiting the  shop shortly before closing on the night of the murders. All four girls had been gagged, tied up and shot. The Harbison sisters Austin Police Department Sarah Harbison, left, and Jennifer Harbison are pictured in an undated photo with their mother. Jennifer was 17 when she was killed in the yogurt shop murders; her sister Sarah was 15. Amy Ayers and family Austin Police Department At 13 years old, Amy Ayers was the youngest of the victims of the yogurt shop murders. She is pictured with her family in an earlier, undated photo. Sonora Thomas with her sister Eliza Sonora Thomas Eliza Thomas, right, was 17 when she was murdered inside the yogurt shop. In this photo taken a few months before her death, Eliza is seen with her younger sister Sonora, who was 13 when her sister died."I remember fantasizing for days that my sister had somehow escaped and ran away and was hiding ... I was constantly fantasizing that she was going to come back," Sonora told "48 Hours" in 2021. "She was always taking care of me" Sonora Thomas Three-year-old Sonora Thomas, left, shares a hug with her sister Eliza in this 1981 family photo. In talking about her big sister,...