Police found Skyler dead in the home about 30 miles southeast of South Bend while two gas-powered generators were running. An autopsy determined he died of carbon monoxide poisoning.
The parents and another child also were home when Skyler died.
While responding to a 911 call from the home, emergency dispatchers received another call requesting a welfare check of the children at the home.
Police and medics found Skyler lying dead on the floor of an upstairs bedroom in the home, which was full of carbon monoxide fumes. He had been dead for several hours. Officers learned that Chamness and Spore were high on meth when the boy died, according to a probable cause affidavit filed with the charges on Friday.
Officers discovered that the home's electricity had been disconnected the previous day, and the generators had been activated and placed in the basement and a porch area for electricity.