Dixon district officials say the post was made on Instagram earlier in the day, during lunch hour, from an account belonging to a seventh grade John Knight student
At least 20 students at a Dixon middle school knew that a classmate had brought a gun and ammunition onto campus before classes started, but did not tell an adult, an investigation by police and school staff found.
The Dixon Police Department is working with the Dixon Unified School District after officials said a student brought a pistol to John Knight Middle School on Monday.