Let Sleeping Dogs Lie - Murder Most Mysterious, #1

How does a private detective prove a convicted murderer's innocence when that woman not only confessed, but had two eye witnesses to her standing over the body with the murder weapon in her hand? Not only that, the client who hires you is one of those eye witnesses. Twenty-five years ago, Julie Ann Thornton interrupted a fight between her mama, Earlene, and low-life, woman abuser Dexter Sterling. During the struggle, Julie Ann was knocked out.
When she came to, her mama was standing over the man's body with the gun in her hand. Within the hour, Earlene had made a full confession to the Chief of Police. Now that Earlene has died, Julie Ann hires Coqui Jones to investigate the cold case to prove her mama's innocence. Through interviewing the quirky residents of Hampton, Georgia and suffering threatening notes and a brutal attack, Coqui feels Earlene's innocence is not so far-fetched.