Schools across the country are taking a look at the security systems they have in place in response to Tuesday's deadly Texas school shooting.

Volusia County officials say they have already been through that process having decided to use school guardians on campus after the Parkland school shooting in 2018.

The guardians in place have gone through extensive training with Volusia County Sheriff Mike Chitwood, who said he had a serious emotional reaction to the attack.

“I don’t know how you fix evil,” he said. “I don’t know how you fix craziness. I don’t know how you stop someone who decides that, 'I’m going to die and I’m going to take a lot of people with me.'"

A longtime member of law enforcement, Chitwood said his heart breaks for the families impacted by this kind of senseless violence.

He and his deputies have actually worked with local schools to try and implement more protection for students over the last few years.

“So the guardians are trained by the sheriff's office," Chitwood said. "Their sole focus on that campus is if a threat comes, they have to take that threat out."

According to Volusia County Schools, the guardians' job is to be highly visible on campus and ready for any emergency situations that come up. 

They are employed by the school system but also work closely with VSCO to get certified.

“All of those men and women that we have are spectacular," said Chitwood. "The kids love them — if you go to any of the schools, the kids love them. They are a part of the social fabric of the school."

Throughout the county, these individuals average 26 years of prior law enforcement experience and 22 years of military experience, Chitwood said.

He believes these roles are beneficial but says more can be done to stop any potential shooters before they can ever make it to a school.

That includes checking for tips and reporting unusual behavior.

“We have Fortify Florida here, where if there's a tip about a shooting, it comes in and we throw every resource at the tip," Chitwood said. "Lots of them turn out to be bogus but we have to investigate everyone as if it’s going to happen.”

Each guardian has to undergo extensive background checks and diversity training on top of training with VSCO, he said.