Marianne Jutta Amaya, a 48-year-old German woman, was murdered at her home at 4180 Ute Drive in San Diego on February 18, 1988. Her husband discovered the scene after returning home, indicating she had been alone when attacked.

The killing involved multiple forms of violence: she was strangled, struck with a blunt object, and her throat was slashed. The combination of injuries points to an extremely violent and determined assault. The case remains unsolved and is listed as a cold case by the San Diego Police Department. Some observers have raised the unconfirmed possibility of links to other unsolved killings in the area.

Anyone who knew Marianne, who lived on Ute Drive then, or who has information about this attack is asked to come forward.