AUSTIN, Texas -- Just four days after the Santa Fe High School shooting, Gov. Greg Abbott , R-Texas, convened a series of panels focused on ending gun violence in schools.

Tuesday's round table featured the heads of the Department of Public Safety and Texas Education Agency, and more than a dozen others. The discussions were held behind closed doors for more than two hours Tuesday afternoon. Abbott said he was able to draft a list of immediate actions to secure schools.

"For some of these programs, a 'one size fits all' process is simply not going to work," he said.

Abbott said parents should share part of the blame for their children's actions.

"A student may be bringing a gun, a knife or other weapon to a school--maybe threatening other students," he said. "Parents are partly responsible for this, and they need to be held accountable for it."

He called on all gun owners--for the third time since Friday's shooting--to secure their firearms. Abbott said he's especially interested in deploying threat assessments to schools statewide. He describes it as software that can predict a student's behavior patterns and alert educators to warning signs.

"This is information that all of our educational institutions need to be able to have access to," Abbott said.

Abbott also asked the Hays County Sheriff's Office to compare notes in its emergency response guide with the Texas School Safety Center. Lt. Jeri Skrocki said some of the steps are as simple as making entrances exit only.

"The importance of fortifying our entrances and exits, not leaving doors propped open," she said.

Another pillar of Hays County's program encourages deputies to deliberately spend time on school campuses.

"We teach officers if you need to go to the restroom, if you want to go eat your lunch, go sit in our cafeteria with the kids and spend the time there," Skrocki said. "That mere presence is a deterrent."

Round Rock Police Chief Allen Banks is in the midst of creating a police department for Round Rock ISD. He calls his agency's active shooter training Active Killer Training in light of criminals' changing tactics.

"What we are realizing now is that your mass events are using other weapons besides the guns, as well," Banks said.

In Santa Fe Sunday, Lt. Gov. Dan Patrick, R-Texas, promised to include funding in the next Legislature's budget proposal. However, that funding would not be available until Sept. 1, 2019.