OSKALOOSA, Iowa [WHO-TV] — An Oskaloosa art teacher who was fired for a post made on social media following the assassination of conservative political activist Charlie Kirk is suing the school district, alleging the move violates his constitutional rights. The filing demands that the case go in front of a jury.

During a special meeting Wednesday night, the Oskaloosa Community School District voted to terminate the contract of Matthew Kargol following a public outcry over posts he made on social media after the September 10 shooting death of Kirk at a Utah college campus. The post reportedly said, “1 Nazi down.”

On Thursday morning, Kargol filed a federal lawsuit against the school district and Superintendent Michael Fisher, claiming his termination over the posts violated his First Amendment rights.According to the filing, Kargol published the posts while off the clock on his personal Facebook account, and that the account didn’t identify him as an employee with the district.

The District released a post on Facebook acknowledging the lawsuit was filed, but could not comment on pending litigation.