SAN FRANCISCO—On November 15, the San Francisco District Attorney’s Office announced that a conviction was secured against Mark Personette, 80, after a trial by jury for a 1978 cold case murder. He was convicted of first-degree murder.

According to testimony and other evidence presented at trial, on March 27, 1978, the 15-year-old victim Marissa Harvey, who was visiting her sister in San Francisco, went to Golden Gate Park to ride a horse. She never returned to her sister’s home. The following day, her body was discovered in the underbrush of Sutro Heights Park by several surfers who were walking through the region.

At the crime scene, investigators found a leaf with the victim’s blood and her earring, showing that she was attacked there. Her cause of death was determined at the scene to

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