From the article: According to Baker County Sheriff Joey B. Dobson, investigators don't know how Stevenson gained custody of the boy.
What they have learned, Dobson said, is that the boy's father obtained custody of the boy in California. But the father gave the boy to his aunt, who raised him with her partner, Stevenson.
Dobson said the aunt died and then Stevenson and the child moved to Baker County.
So the boy was with his dad's aunt, the boy's grandmother's sister?
Or was the boy placed with his dad's sister, the boy's aunt?