Rita Newcomb, 66, had been accused of forging custody documents and lying to a grand jury and investigators in an effort to cover up the execution-style murders of eight members of the Rhoden family.

The 76-year-old grandmother, who is facing charges of obstruction, is an institution in Pike County known by some as a beloved Sunday school teacher who is always giving back to her community.

Investigators believe the slaughter of eight family members in Piketon, Ohio could have been triggered by a custody dispute between one-time lovers Jake Wagner and Hanna Rhoden.

The murder of eight people, all members of the Rhoden family, rocked Piketon, Ohio. What do authorities think happened?

The two-hour special hosted by Beth Karas delves in to the massacre that shook Piketon, Ohio in 2016.

The Rhoden family murders are referred to as the largest homicide investigation in the state of Ohio's history.