In November 1994, 37-year-old Robin Lawrence was found brutally murdered inside her Virginia home after being stabbed 49 times. Her two-year-old daughter was discovered alive but alone in the house, having spent nearly two days wandering the crime scene. Investigators believe the toddler tried to help her mother, leaving behind a heartbreaking scene that would stay with detectives for decades.With no witnesses and no clear motive, the case quickly went cold. The only real clue was a small amount of DNA left behind on a hand towel, evidence that couldn’t be matched to anyone at the time. For nearly 30 years, Robin’s killer remained unidentified. Then, advances in genetic genealogy gave investigators a second chance. By building a family tree from distant DNA matches, a volunteer genealogist helped narrow the search down to one man: Stephan Smerk.In 2023, detectives approached Smerk, a seemingly ordinary suburban father with no criminal record. After providing a DNA sample, he confessed to the murder. According to investigators, the attack was completely random, he didn’t know Robin and had no connection to her. He admitted he entered the home intending to kill someone, then carried out the attack before returning to his normal life. Nearly three decades later, the DNA Robin left behind led to justice in a case that once seemed impossible to solve.Learn more about your ad choices. Visit megaphone.fm/adchoices