Byck Elementary briefly locked down after nearby gunshots; students and staff are safe.
The chemistry teacher allegedly said he would be the next school shooter.
The school safety bill would allow local school boards to hire and assign guardians at schools.
Hardin County Schools is testing new technology this week to keep students and staff safe.
Parents of students at the school received a phone call Tuesday morning informing them of the threat.
The technology is already being used in at the Kentucky Center for the Performing Arts.
As a precaution, the high school students will be taken to the middle school while a bomb sniffing dog is brought in to check the building.
Parents were notified in a letter from the school's principal.
Students on a Jefferson County Public Schools bus say they were followed and threatened with a gun on the route home from school Friday afternoon, according to JCPS.
JCPS plans to put Audio Enhancement devices in every classroom during the 2022-23 school year at a cost of about $150,000 per school.