Post Mortem | The Girl From Wahoo

48 Hours correspondents Anne-Marie Green and Natalie Morales examine the cold case of Mary Kay Heese, a 17-year-old girl who was murdered in Wahoo, Nebraska in 1969. They discuss the behind-the-scenes footage of the cold case unit in 1999, why investigators kept digging into Mary Kay’s murder, and how the evidence came together to make an arrest over 50 years later.