Jonelle Matthews nació el 9 de febrero de 1972 en Santa Bárbara, California, Estados Unidos. Murió el 20 de diciembre de 1984 en Colorado, Estados Unidos.
Disappeared from her home after returning from performing in a school's holiday performance in December 1984.. Her remains were found over 34 years later by construction workers putting in a new pipeline 15 miles (24 km) from her home.