In October 1987, 20-year-old Corinna Mullen was found brutally murdered in the trunk of her own car behind a city garage in Central City, Kentucky. Her injuries were catastrophic. She had been beaten, sexually assaulted, and left to die. Her boyfriend, Jimmy Springer, was arrested, tried, and ultimately acquitted when the jury found the evidence too thin to convict. The investigation was riddled with problems. Evidence was never tested. Key interviews were never recorded. And a pocket knife with blood and hair on it was found by Corinna's own father after her car was returned to the family.

For nearly two decades, Corinna's parents, Claude and Patricia Mullen, refused to let the case die. They placed ads in newspapers, handed out flyers, met with agencies, and followed every lead they could find. Then in 2005, a woman named Sandy came forward with a story that changed everything. She claimed she had been a 16-year-old witness to Corinna's murder and that the man who orchestrated it was none other than Lieutenant Billy Fields, the very officer who had responded to the crime scene and led the original investigation.

In 2006, Billy Fields, Jeffrey Boyd, Jimmy Cramer, and Angela Smith were all arrested in connection with Corinna's death. The trial finally began in 2009, more than 20 years after the murder. Billy and Jeffrey each received life sentences. Jimmy Cramer received 60 years. Corinna's mother did not live to see the arrests. Her father, Claude, died just before Christmas in 2011, two years after the verdicts. Corinna's daughter, Stephanie, who was just two years old when her mother was killed, said she never believed this day would come.

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