Mattia was allegedly upset about some interaction Fairfield students had with members of his family, according to police. Fairfield played Hamilton on Friday in the opening round of the playoffs. Fairfield beat Hamilton 37-13.
An unidentified school official called police at 2:51 p.m. Wednesday at the request of head football coach Jason Krause, according to the caller.
“He’s yelling at people in our parking lot,” the caller said. “I don’t know if he has a gun. Our coaches are out there. I was just told to call. One of the athletes supposedly saw (a gun) in his car.”
The caller said Mattia came over to the high school first.
Mattia is scheduled to appear on Nov. 27 in Fairfield Municipal Court.
Fairfield City School District spokeswoman Gina Gentry-Fletcher said the school is investigating Mattia’s alleged visit to the high school, but declined further comment.
“This is an active police investigation. As a result, it is not appropriate for the district to comment further,” she said.