Kegans left a Pizza Hut in north Oklahoma City, where she worked as a waitress, about 11:45 p.m. Oct. 24, 1976, to go see a boyfriend in Norman, authorities said.
She instead visited with her boyfriend's roommate and stepbrother, Phillip Leslie Hanlin.
She left the apartment about 4 a.m. Oct. 25, 1976.
Hanlin testified at a preliminary hearing he offered to give Kegans a ride if she could wait until he returned from taking his roommate to work later that morning.
“She said she could not wait, that she had promised somebody that she would baby-sit for them that morning and that she herself needed to be there by 7 a.m. or so at the latest,” Hanlin testified.
“She said she was going to go back the same way she came, which was to hitchhike.”
Prosecutors suspect Kennedy picked her up as she hitchhiked back to Oklahoma City.
At the time, Kennedy worked as a bouncer at the Whiskey River Bar in Norman and lived in Midwest City. He was then 21.
He admitted to police in the 2010 prison interview that he had owned a .38-caliber pistol at the time.
In December 1978, an Oklahoma County jury chose a life sentence for Kennedy after finding him guilty of first-degree murder for the prostitute's death.
The 1978 case is considered a landmark case because it was the first time bite-mark evidence was used against a defendant at a criminal trial in Oklahoma. The Court of Criminal Appeals in 1982 upheld the conviction.
The victim, Yvonne Jolene McFaddin, a runaway from Texas, had been strangled by a wire and left half nude in a dry bathtub at the King's Inn Motel in downtown Oklahoma City on May 31, 1978, court records show. Kennedy had bitten her breasts, prosecutors alleged.