"There was a hail of gunfire," Harvey County District Attorney David Yoder said. "The suspect was shooting at Doug and he went in without regard for his own life.
"There's no better definition of a hero."
"He was just doing his job," one police officer told PEOPLE.
Two hours after being served with a protection from abuse order, the alleged gunman, identified as Cedric Larry Ford, 38, opened fire on the drive to Excel Industries, a lawn equipment factory, wounding two. When he got to the factory, his place of employment, he shot three dead and wounded 14 others.
Kansas Governor Sam Brownback told reporters Friday that Schroeder shot and killed Cedric Ford inside the building.
He said that Schroeder, who first on the scene, "seized the situation" and went inside without backup.
"Without his aggressive response,” more people would have been at risk," Brownback said.
Without naming Schroeder at an early morning press conference on Friday, Harvey County Sheriff T. Walton also commended him, calling him "a tremendous hero."
Schroeder saved 'multiple' lives, since 200 to 300 other people remained in the building and the "shooter wasn't done by any means," said Watson.
"Had (Schroeder) not done what he did, this would be a whole lot more tragic," Walton said.
Schroeder has been Hesston's police chief since 1998, according to his LinkedIn page.
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Officer Who Helped Get Injured to Safety: 'We Do Our Job'Schroeder wasn’t the only hero on the scene Thursday.
Officer Chris Carter had just gone off duty when he heard reports about a mass shooting at the company where family and longtime friends work.
Since the small town police department was "down a patrol car," he jumped in his pick up truck and raced to the factory, he said at the press conference Friday morning.
"What crossed my mind is finding the bad guy," he said. "That's it – protecting everyone else that is still there."
When he arrived on the scene, "there were still people exiting the building," he said.
After he helped clear the building for any other suspects, he did whatever he could to tend to victims.
"He along with an EMT loaded the man in his pickup truck to get [one victim] help," said Walton. "[He] is another hero."
The aftermath of the shooting was "overwhelming, but we were on autopilot," said Carter. "We train for this."
Asked what he thought about being called a hero, Carer simply said, "We do our job. That is all I did."