I just can’t help but think this is bs. That woman probably did something or knows who did to her little girl. I would think she would have sent the calvary out long before this.
my guess....
she left the kid in the car and it died of heat exposure, while free wheelin’ mama was drinking/drugging somewhere.
then she tried to cover it up by tossing the kid’s body somewhere.
and granny is a nutcase, no matter how you slice it.
I’m with you, and I think the Grandmother knows what happened but doesn’t want to admit it.