Cynthia W. Jabour, worked as a real estate agent in Las Vegas, Nevada. On October 5, 1980, the 47-year-old was last seen after informing friends she intended to end her relationship with Robert Dean Weeks due to his jealousy and possessiveness. The couple had plans for dinner that evening, but Weeks later claimed she canceled. Jabour was not seen again.
On October 7, concerned friends entered her apartment and found no signs of disturbance or theft. Her vehicle was discovered abandoned in the Caesars Palace Hotel parking lot, with valuable clothing and approximately $47,000 in securities left behind. Weeks, owner of a limousine service, was questioned but failed to take a lie detector test, citing business travel. He instead traveled to Mexico and Chile, returning three years later via Houston on a Libyan passport before relocating to San Diego under the alias Robert Howard Smith.
Similar patterns appeared in other cases linked to Weeks: his ex-wife Patricia Weeks vanished from Las Vegas on April 25, 1968, shortly after their divorce and custody award (vehicle abandoned near the airport); business associate James Shaw disappeared May 5, 1971, after an argument (bloodstained car found); and nurse Carol Ann Riley vanished April 5, 1986, from San Diego while planning to end her relationship with “Robert Howard Smith” (vehicle abandoned locally; remains identified in 2025 from 1987 Lake Mead discovery via dental records).
In 1987, Weeks was arrested in Tucson, Arizona, living as Charles F. Stolzenberg after an Unsolved Mysteries tip. Indicted in July 1987, he was convicted in April 1988 of murdering Patricia Weeks and Cynthia Jabour, the first no-body murder conviction in Nevada history, and sentenced to life without parole. He died in prison September 20, 1996. He was never charged in the Riley or Shaw cases.
James Shaw, Patricia Weeks, and Cynthia Jabour's remains have not been located as of May 2026.
