Wilbur Lee Jennings, born in 1941, raped and killed four women in Fresno County, California, between 1981 and 1984: Karen Robinson, 21, Jacqueline Frazier, 26, Linda Johnson, 28, and Olga Cannon, 23. The victims were drowned or killed by blows to the head. He was sentenced to death in 1986 and his conviction was reviewed by the California Supreme Court in People v. Jennings. The Fresno press called him the Ditchbank Murderer, after where the bodies were left.
In May 2008 Fresno investigators announced that a twenty-five-year-old cold case had been closed against him on DNA evidence, which is the source of the plus sign on the recorded toll.
California has not carried out an execution since 2006 and has operated a formal moratorium since 2019, so the sentence stands unexecuted.