On September 12, 1984, Linda Johnson, a 28-year-old African American woman, returned to her hometown of Selma, California, from Long Beach, where she had been living with her boyfriend, Melvin Cooper. After visiting her ailing mother in the hospital, she went to her family home. The following morning, around 5 a.m., a fire engulfed the Johnson residence. Investigators determined the blaze was intentionally set using a flammable liquid ignited in three separate areas of the house. Neither Linda Johnson nor Cooper's blue Cadillac, which she had been driving, was found at the scene.
Later that day, authorities discovered the seminude body of Linda Johnson in a canal outside Fresno. An autopsy revealed she had suffered 18 blunt force injuries to the head, causing multiple fractures and extensive hemorrhaging. Material collected from her body tested positive for prostatic acid phosphatase, indicating the presence of semen. Additionally, a black adhesive substance found on her body matched the weather stripping from the trunk of Cooper's Cadillac. That evening, the Cadillac was found abandoned and set ablaze, with the smell of gasoline evident at the scene.
Wilbur Lee Jennings, a 44-year-old African American man and neighbor of the Johnson family, was arrested on September 13, 1984, in connection with Linda Johnson's murder. Jennings had previously inquired about Linda's whereabouts during her absence and expressed frustration over her delayed return. In 1986, he was convicted of the first-degree murders of Linda Johnson, Olga Cannon, and Jacqueline Frazier, as well as the second-degree murder of Karen Robinson. The jury found special circumstances in the murders, including that Johnson and Cannon were killed during the commission of rape and robbery. Jennings received a death sentence for these crimes.
Jennings was also linked to other murders, including that of 76-year-old Clarice Reinke in 1983 and 17-year-old Debra Chandler in 1981, through DNA evidence. He was awaiting trial for Chandler's murder when he died of natural causes on February 11, 2014, at the age of 73, while in custody at the Sacramento County Jail. Jennings was known as "The Ditchbank Murderer" due to his practice of disposing of victims' bodies in canals or irrigation ditches.