A teacher at New Town High School faces a felony charge of criminal mischief after police say he destroyed one the school’s printers with a hammer.

Thirty-seven-year-old Lukas Kostelecky made his initial court appearance Thursday.

Court records indicate that police responded to the school shortly before 1 p.m. Feb. 27 for a report of a ‘teacher that was freaking out and destroying property.’

Multiple witnesses told police they either saw Kostelecky enter the classroom or heard ‘three loud bangs,’ though no one said they witnessed Kostelecky destroy the printer. Police later found the hammer in a white plastic bag identified by witnesses.

Kostelecky denied the accusations to investigators.

Police said the printer, worth nearly $6,700, was a total loss.

According to the school’s website, Kostelecky teaches automotive tech.

The principal of the school confirmed with KMOT that Kostelecky has been put on administrative leave until the school board can discuss the matter.

Kostelecky will be back in court April 6 for his preliminary hearing and arraignment.

He faces a maximum of five years in prison if convicted.