A semi-automatic rifle and two handguns were found on scene, the The Associated Press reports. Johnston told the AP that the shooter’s motive remains unclear, but that neighbors had reported that the suspect was involved in a domestic violence incident.
One of the victims was a woman whom the suspect was previously accused of stabbing, the AP reports. Authorities also say the gunman attempted to access rooms in the elementary school to harm the children, but the lockdown procedure stopped him and saved lives.