Matthew Milby was 19 when he went to graduation practice with a loaded gun. He exchanged gunfire with a police officer outside the school.
Former Dixon High School student charged in exchange of gunfire with school resource officer
The officer shot Milby, who was the only person injured in the incident.
In July, Milby pleaded guilty to aggravated discharge of a firearm toward a police officer and aggravated discharge of a firearm in a school.
School resource officer who stopped Dixon school shooting speaks out