A separate resident of the property, which is located in the city of Goldsboro, was shot by masked intruders in the incident, according to a statement released by the local authorities.
Goldsboro Police Department officers responded to a report of a shooting at a home shortly after 1am on Saturday and found one of the residents, Lina Ellis, 73, suffering from a gunshot wound.
Shortly after, a second person, Khalil Herring, 19, of Goldsboro, was discovered suffering from a gunshot wound by police at an intersection around half-a-mile away from the home.
Both victims were transported to a local hospital, where Ms Ellis is in a stable condition after being treated for non-life threatening injuries.
Mr Herring was pronounced dead later that night due to the injuries sustained in the incident, the department confirmed.
Goldsboro police revealed that preliminary evidence in the case suggests that Mr Herring was one of two suspects who “forced their way” into the home on Saturday.
The authorities alleged that Mr Herring and the other unnamed suspect “demanded money” and shot the 73-year-old in the incident.
The 12-year-old is then alleged to have shot at both of the suspects in self-defence, causing “them to flee the area.”
The department said that charges against the juvenile are “not anticipated”, but confirmed that an investigation into the robbery is underway.
Randolph Bunn, the 12-year-old’s great-uncle, told WTVD on Sunday that he was in the home when the incident occurred and claimed that one of the suspects was armed with a gun.
“(The intruder) just shot his grandma ... He would have shot him too, he would’ve shot me too, he would’ve killed us all,” he added.
While Chiquita Coley, identified by WRAL as Ms Ellis’ great-niece, said she was shocked that the attack had happened.
“Why would somebody come into her house and do this? It’s got to stop,” Ms Coley said. “I don’t know what they’re thinking around here in Goldsboro, but it’s got to stop,” she added.
The authorities confirmed to ABC News that they will not be releasing any more information about the case, including details about the relationship between Ms Ellis and the 12-year-old.