A shooter opened fire at a private Christian grade school in Nashville, killing 3 children and 3 adults, officials said. The suspected shooter was fatally shot by police at Covenant School in the city’s Green Hills neighborhood, authorities said, writes CBS NEWS.

Authorities have identified the victims as 9-year-olds Evelyn Dieckhaus, Hallie Scruggs, and William Kinney, 61-year-old Cynthia Peak, 60-year-old Katherine Koonce, and 61-year-old Mike Hill. All three adults worked at the school. Police identified the shooter as Audrey Hale, a 28-year-old from Nashville, who officials said was armed with at least two assault weapons and a handgun.

Nashville Police Chief John Drake said their preliminary investigation into the shooting indicated that it was a targeted attack. The probe suggested that the shooter was at one time a student at the school, although Drake did not know exactly when they may have attended.

Police discovered “a manifesto” as well as “maps drawn of the school in detail”, according to the chief.