Amanda Teresa “Mandy” (née Stavik; born April 16, 1971 – disappeared November 24, 1989) was an American college student who went missing a day after Thanksgiving, while jogging near her home in Acme, Washington with her German Shepherd, Kyra.

The case remained unsolved for nearly 30 years until advancements in DNA technology led to an arrest and subsequent conviction.

Law enforcement obtained his DNA from a discarded soda can and plastic cup collected by a coworker following months of surveillance.

Mandy Stavik (born April 16, 1971) was raised in Acme, Washington, a rural community in Whatcom County.

[7] Police covertly obtained Bass's DNA from a discarded soda can and plastic cup collected by a coworker after three months of surveillance.

Bass, who was married with children at the time of his arrest,[10] maintained his innocence and claimed he and Stavik had consensual sex.