The 13-count indictment against Michael Brandon Hill was filed Thursday in DeKalb County Superior Court. The charges against Hill include aggravated assault, terroristic threats, firearms violations and obstruction.
Circuit Public Defender Claudia Saari, whose office is representing Hill, declined to comment Friday. Her office earlier said Hill has “a long history of mental health issues.”
A spokesman for DeKalb County District Attorney Robert James said in an email James had no comment on the indictment.
Police investigators have said Hill, 20, went to Ronald E. McNair Discovery Learning Academy in Decatur on Aug. 20 with an assault rifle and nearly 500 rounds of ammunition. The school a few miles east of Atlanta has 870 students in pre-kindergarten through fifth grade.
No one was injured in the standoff.
Television footage showed lines of young students racing out of the building with police and teachers escorting them to safety. They sat outside in a field until school buses came to take them to their parents at a nearby Wal-Mart.
Hill held one or two staff members in the front office captive for a time, police said, making one of them call an Atlanta television station. At some point, Hill fired into the floor of the school office. As officers swarmed the campus outside, he shot at them at least half a dozen times with an assault rifle from inside the school and they returned fire, police said. Hill surrendered when police entered the school office.
Law enforcement officials have credited school bookkeeper Antoinette Tuff for persuading Hill to surrender to officers.
Hill faces one count each of aggravated assault on a peace officer, second-degree burglary, terroristic threats, carrying weapons within certain school areas, false imprisonment, theft by receiving stolen property, possession of a firearm during commission of a felony, possession of a firearm by first offender probationer; two counts of aggravated assault; and three counts of obstruction of an officer.
Sheriff’s officials have said Michael Hill was arrested in mid-March for making terroristic threats in Henry and DeKalb counties. He was sentenced to probation.
Saari said in an email that the next step will be an arraignment, which has not been scheduled.