Sanguma is a junior at Apalachee High, where a student allegedly opened fire, killing two students and two teachers, including Sanguma’s algebra teacher.

Roughly 600 mourners honored 14-year-old Christian Angulo during a funeral mass at St. Matthew Catholic Church in Winder, the Atlanta Journal-Constitution reported. He was among two students and two teachers killed Sept. 4 at Apalachee High School by a student armed with an assault-style rifle. Another teacher and eight other students were injured.

Apalachee High School is planning a “gradual reopening” the week of Sept. 23, the school announced Friday — more than two weeks after police say a student shot and killed four people at the Barrow County campus.