Body of millionaire's girlfriend Rebecca Zahau exhumed for autopsy

(CBS/KFMB/AP) SAN DIEGO - The body of Rebecca Zahau, the woman whose naked body was found hanged at a San Diego-area mansion, has been exhumed and will undergo a second autopsy by a pathologist on the East Coast, according to her family's attorney.

Pictures: Girlfriend, son die days apart at tycoon's Calif. mansion

Zahau's body has been flown to Pittsburgh, where world-renowned pathologist Dr. Cyril Wecht will perform a private autopsy Friday morning, reports CBS affiliate KFMB.

Relatives of Zahau have been asking questions about the unusual circumstances of the woman's death, even after the medical examiner concluded that she committed suicide.

Authorities say she killed herself because she was distraught over a fatal fall that Shacknai's 6-year-old son suffered at the house two days earlier. According to police, Zahau used a rope to tie her own hands, feet and neck before rolling off the balcony. The family has said they do not believe Zahau committed suicide.

Adding to the mystery, Medical Examiner Investigator Dana Gary reported a message found painted on a door inside the house.

"I noted black painted writings on the bedroom door that led into the room with the balcony," Gary wrote. "The writing 'She Saved Him Can You Save Her' in black paint was on the hallway side of the bedroom door," the report said.

In September, ABC News reported that investigators have speculated the writing might have been a kind of suicide note but Zahau's family says the note is not in her handwriting.

Meanwhile, KFMB reports the family said donations paid for Zahau's body to be exhumed and transported from its burial plot in St. Joseph, Missouri.

Complete coverage of Rebecca Zahau on Crimesider