In 1991, four teenage girls were killed in Austin. Decades later, their cold case is the subject of HBO docuseries "The Yogurt Shop Murders."

“The Yogurt Shop Murders” comes out at 10 p.m. ET tonight, Aug. 3, on HBO. The episode will release at the same time on HBO’s HBO Max streaming service. “The Yogurt Shop Murders” is a four-part documentary series, with the episodes airing over the next four weeks.