SALISBURY (WBTV) — Investigators say bones found at the former home of missing teenager Erica Parsons are “not human” and are likely from a small animal.

Parsons was reported missing by her brother in July 2013 at the Rowan County Sheriff’s Office. She has reportedly not been seen since November 2011.

Her adoptive parents, Casey and Sandy Parsons, say Erica went to live with her biological grandmother in Asheville. They say they have not had any contact with her since February 2012.

Sandy Parsons is serving eight years in federal prison and Casey Parsons is serving ten years for cheating the government out of federal adoption assistance money that was intended for Erica.

The pair continued to collect the money for months after Erica had disappeared from their home on Miller Chapel Road in Salisbury.

Monday, investigators say the person who now owns the property along the 200-block of Miller Chapel Road cut down a large tree on the property and found some bones.

That person called the Rowan County Sheriff’s Office to investigate.

Digital images of each of the bones were sent to the Medical Examiner and they confirmed the bones were not human, and were likely from a small animal.

While the Parsons lived at the home, they operated a kennel on the property and had dozens of dogs and hedgehogs at the house.

Investigators searched the home in mid-August 2013, two weeks after Erica was reported missing. During that search, investigators logged information about 68 items that they removed from the house.

That list includes a “plastic bag with JonBenet Ramsey magazines” and a “JonBenet book with notes inside about remodeling house.”

The warrant says there was drywall cut and removed from a closet area with red stains. The section was tested for blood, the warrant states. Investigators also took baseboards from the closet with red stains.

“During that search, investigators failed to located any evidence of Erica Parsons still living here or any evidence that her room or personal living area still remained in the home,” a warrant stated.

Investigators say the evidence in the home indicated that Casey and Sandy Parsons knew Erica would not be returning home.

In addition to finding photos and books about the death of JonBenet Ramsey inside the Parsons home, the new warrant states that investigators also found material on the “South Carolina Susan Smith case.”