Charlotte, North Carolina (CNN) Thousands gathered Wednesday evening on the campus of the University of North Carolina at Charlotte, holding candles in memory of victims of this week's shooting.

Authorities say Trystan Terrell, 22, a former student, opened fire in a campus classroom Tuesday evening, killing two people and wounding four others. Terrell intentionally targeted the Kennedy building, where the shooting took place, Charlotte-Mecklenburg police Chief Kerr Putney said.

Wearing their school colors, students formed a sea of green and streamed into the Dale F. Halton Arena to grieve together at a memorial service. They sang their alma mater and chanted "forty-niners," the school's nickname.

Then, they filled the courtyards surrounding the arena in a show of unity, holding their candles.

"It's just really powerful, honestly, to just see our community and our students and faculty and our chancellor, and just everyone coming together to support each other and to support the victims," senior Brittany Moose told CNN affiliate WSOC.