Mary Kelley Campbell - Mary Sunshine and Art of Murder

Mary Campbell was known as Mary Sunshine for her positive and cheerful attitude and grace bestowed on everyone.  Her belief that everyone can be changed almost saved her... but some humans are just plain garbage.  

References:
Campbell, Janel Kelley and Stroschein, Ruby Campbell. (2020). The Multiple Murders of Mary Kelley Campbell. Elk River Press.
https://law.justia.com/cases/washington/supreme-court/1963/36248-1.html