Kristina Sue Allen, 24, was last seen in Los Angeles on February 28, 1976, after leaving a Venice Beach bar where she had been with her brother. She decided to walk back to her apartment alone and never arrived; she has not been heard from since.

Kristina is described as 5 feet 7 inches tall, about 120 pounds, with brown hair and blue eyes. At the time she vanished she wore jeans and a silver ring with a black onyx stone, and carried only her wallet and keys. She had a medical condition that required pins in her lower leg and skull, and a surgical scar on her forehead.

The case remains unsolved and there have been few developments over the decades. Anyone who knew Kristina, saw her in the Venice Beach area that night, or has information is asked to contact the Los Angeles Police Department.