Janie Lou Gibbs (December 25, 1932 – February 7, 2010) was a serial killer from Cordele, Georgia, who killed her three sons, a grandson, and her husband, by poisoning them with rat poison in 1966 and 1967.
Gibbs' husband of 18 years, Charles Clayton Gibbs, 39, died January 21, 1966. Her youngest son, Marvin Ronald Gibbs, 13, died August 29, 1966, followed by her middle son, Melvin Watess Gibbs, 16, on January 23, 1967. She inherited $31,000 from their deaths and tithed 10 percent to her church.
The deaths had previously been attributed to liver disease, but she was eventually arrested Christmas Eve 1967 after her oldest son, Roger Ludean Gibbs, 19, died in the same fashion as his father and brothers. On October 28, 1967, Roger's month-old son Ronnie Edward Gibbs also died under suspicious circumstances.
Despite the unusual coincidences of so many deaths in such a short period of time, she blocked insurance adjusters' requests for autopsies. Although insurance adjusters were suspicious, most of Gibbs' neighbors and friends from church could not believe that the 35-year-old mother and former farmer's wife who ran a day-care center could be a serial killer.