News coverage.
Here:
DCT Order Dismissing OST Complaint
One other pleading:
The complaint is here.
Here.

Whiteclay, Nebraska. Population 14, exists only to sell alcohol to Native Americans already reeling from its damage. / Photo by Stephanie Woodard
Additionally, the reporter, Stephanie Woodward, conducted three interviews with Indian country professionals (Diane Garreau, Frank LaMere, Danialle Rose) on Indian child welfare in the aftermath of the NPR profile from last year.
Here is the complaint in Oglala Sioux Tribe v. Schwarting (D. Neb.):