What we know about the 4 victims killed in Apalachee High School shooting

A Georgia community is in mourning after two students and two teachers were killed in a shooting at Apalachee High School on Wednesday, according to authorities.

Another nine victims were injured and are expected to survive, according to the Georgia Bureau of Investigation Director Chris Hosey.

The suspected shooter, 14-year-old student Colt Gray, and his father, Colin Gray, have been both charged.

Here is what we know about the four victims killed:

Christian Angulo

Christian Angulo was a 14-year-old student at the high school, according to the GBI.

"He was a very good kid and very sweet and so caring," his older sister, Lisette Angulo, wrote on a GoFundMe page. "He was so loved by many."

"We are truly heartbroken," she said. "He really didn’t deserve this."

Richard Aspinwall

Richard Aspinwall was a 39-year-old teacher at Apalachee High School, according to the GBI.

Aspinwall taught math and was defensive coordinator for the school's football team, according to the school's website.

Brayan Maldonado, 17, was in Aspinwall's class when the teacher was shot near the classroom doorway. Maldonado said one of his classmates dragged Aspinwall's body back into their classroom.

"He had two babies and a daughter -- that's what really broke me down," Maldonado told ABC News. "Because I knew he was a family man."

Maldonado called Aspinwall his favorite teacher.

"He was so chill," he said. "He will make sure you do the work, but he’ll also make sure you have fun."

"As our community, school, and football program begins the mourning process we are so grateful for the outpouring of support," the football team said in a post on X. "To our beloved defensive coordinator Ricky Aspinwall, we will carry you heavy in our hearts. We love you Coach A!!!"

Cristina Irimie

Cristina Irimie was a 53-year-old math teacher at Apalachee High School, according to the GBI.

Mason Schermerhorn

Mason Schermerhorn was a 14-year-old student at the high school, according to the GBI.

"He was the sweetest most loving soul with the biggest smile and will be missed dearly," his sister's friend wrote on a GoFundMe page.

ABC News' Miles Cohen contributed to this report.