The title only said what it began about.
The report did NOT tell the set of events that led to the police getting involved.
I can surmise the kinds of things that might have taken place, but the report does NOT say what they actually were.
Here, below, is a more complete report on the story (I just went and found) that fills in some of the blanks left out of the Liberty Crier’s report.
Boy Who Refused to Take Off NRA Shirt Facing Possibility of 1 Year in Jail
That pretty much sums it up.
From your link: “Other students across Logan County wore similar shirts, which display the NRA logo and a hunting rifle, to school in a show of support for 14-year-old Jared Marcum, said his lawyer Ben White.”
If those other students weren’t treated like Jared the school has lost its case.