Wanda Larson and Dorian Harper are charged with numerous offenses after a sheriff's deputy found the shivering 11-year-old boy. Larson is a supervisor with Union County Department of Social Services. The couple, both 57, adopted four children and was serving as foster parents to the fifth child.
Union County Sheriff Eddie Cathey called the incident "shocking." Harper and Larson are charged with intentional child abuse inflicting serious injury, false imprisonment and cruelty to animals. They are in jail awaiting a court appearance set for Monday.
The children, aged 8 to 14, have been removed from the home.
Authorities say it appears the 11-year-old boy was routinely handcuffed in the home.
Union County Sheriff's Capt. Cody Luke also told The Charlotte Observer on Sunday that human waste was found on the home's floor.