Robert Weber, a 35-year-old male from Concord, California, was abducted, shot, and his body was dumped in Colusa County, where it was discovered in August 1985. His murder was linked to John Sapp, a drifter with a long history of institutional confinement. Sapp had spent nearly two decades in various state and county facilities before being arrested in May 1986 for multiple murders, including that of Robert Weber.
Authorities determined that Robert Weber, a 35-year-old male, was among
Sapp's victims, along with John Abono, 22, and Elizabeth Duarte, 24. Sapp's arrest was triggered by the discovery of a human skeleton in Butte County, believed to be the remains of his own mother, Geraldine Sapp, 67. Investigators found that Sapp had been living with his mother before she disappeared in 1985. While he denied killing her, he admitted to disposing of her alleged murderer.
John Sapp was convicted in Contra Costa County Superior Court in 1991 for the murders of Robert Weber, a 35-year-old male, Elizabeth Duarte, and John Abono. His conviction was based on confessions he made after being arrested in Nevada County in 1986 on a weapons charge. Sapp had a history of criminal activity, including a previous imprisonment for arson related to the disappearance of Elizabeth Duarte in 1981. His arrest led authorities to examine multiple sites where he claimed to have buried additional victims.
The California Supreme Court upheld Sapp's death sentence in a unanimous ruling, rejecting his appeals that challenged the legality of his confessions and the consolidation of the murder charges. Sapp, who had worked at Chevron Research in Richmond, was identified as a drug dealer involved in the sale of cocaine and marijuana. His crimes spanned a decade, from 1975 to 1985, and his conviction marked the end of a lengthy investigation into his violent activities.
