Gaskamp could be sentenced to up to five years in prison for one count and 10 years for the other, Smith said. Montgomery faces up to five years for one count and up to life in prison for the other.

Prosecutors tell CNN there may be other arrests or charges.

"This case is not over," Smith said. "This is still ongoing. We would like to pursue justice fully for the Anderson family. We want the Anderson family to be pleased at the end of this case that justice was done."