Cynthia Jabour, a 47-year-old real estate agent from Las Vegas, vanished after meeting a longtime intermittent partner, Robert Weeks, on the evening of October 5, 1980. Friends said she planned to break off the relationship because she was weary of Weeks’s jealous, controlling behavior. The last confirmed sighting was at 10:30 p.m. in the lobby of Weeks’s condominium building; she was never seen or heard from again.

Two days after she was reported missing, a friend entered Jabour’s apartment and found no sign of struggle. Her personal effects, including expensive clothing and a sizable securities account, appeared untouched. Her car was later found abandoned in Caesar’s Palace parking lot. Weeks told police Jabour had canceled their dinner and denied knowing her whereabouts.

Weeks later was linked to other women who disappeared after intending to end relationships with him. He was convicted in April 1988 of the murders of Cynthia Jabour and his ex-wife Patricia Weeks and sentenced to life; Jabour’s body has never been recovered. Does anyone have information about Jabour’s last movements that could shed more light on that October night?