In the spring of 1977, a small town convenience store in Arkansas becomes the site of a robbery and a murder. What makes this case unique, is that the victim was seventy-one years old - and a cop. Solving his case would take a chat with a serial killer, an undercover sting operation, and twenty-five years.\n \nSponsors: \n\nSimplisafe: Right now, Cold Case Files listeners get a special 20% off any SimpliSafe system\nwhen you sign up for Fast Protect Monitoring. This huge offer is for a limited time\nonly. So visit SimpliSafe.com/COLDCASE There\u2019s no safe like S impliSafe.\n\nNutrafol: Take the first step to visibly thicker, healthier hair. For a limited time, Nutrafol is offering our listeners ten dollars off your first month\u2019s subscription and free shipping when you go to Nutrafol.com and enter the promo code FILES.\n\nZocDoc: Go to Zocdoc.com/CCF and download the Zocdoc app for FREE. Then find and book a top-rated doctor today. That\u2019s Zocdoc.com/CCF\nAngi: Download the free Angi mobile app today or visit Angi.com \n\nProgressive: Multitask right now. Quote your car insurance at Progressive dot com to join the over 28 million drivers who trust Progressive.