WEWS/ABC News

Chardon High School football coach charged after the teenage shooter who had just shot five students, chasing him out of the school, but he still wishes he "could've done more."

Frank Hall, the assistant football coach and study hall teacher, spoke about his regrets as alleged shooter T.J. Lane made his first appearance in court, and just hours after two of the wounded students died. The death toll from the shooting spree is now three.

The shooting stopped as Hall, a hulking man who fully looks the part of an assistant football coach, ran after the shooter and chased him out of the  building, witnesses said. Police arrested the suspect shortly thereafter.

But despite his valiant efforts, Hall says he wish he could have done more.

"I just want to say that I'm sorry to the families…to the victims. I wish I could've done more," the coach told ABC News affiliate WEWS.

"@janineMcKenna33 yeah mr. hall chased the kid out of the school…  mr hall went up to him and almost got shot," a student wrote on Twitter.

"Coach Hall, he always talks about how much he cares about us students, his team and everyone," said student Neil Thomas told CNN. "And I think today he really went out and he proved how much he cared about us. He would take a bullet for us."

Hall isn't the only hero at Chardon High School. Joseph Ricci, a math teacher, pulled a wounded male student into his classroom and administered first aid until paramedics arrived at the scene.

"We were sitting there and you could hear everyone running down the hallway. Then you could hear the gunshots. They started screaming 'lock down' and you didn't know what was going on," junior Haley Tierney told ABC News affiliate WEWS.

"[Mr. Ricci] has lockers in his classroom and he was so protective. He grabbed a bulletproof vest and a hammer and closed the door and made sure we were OK. He brought the kid in our room and helped him and held him there until the medics got there," she said.

Students are also crediting practice terror drills with saving lives.

"I thought drills were stupid. We did them every two months. Turned lights off, backs to a wall," said a student named Jonathan.