A night janitor at Amity Elementary School on Galbraith Road is accused of using the school basement for target practice.
Deer Park police said Brian McConnell, 32, brought a .38 revolver to school Thursday night. They added that once his chores were finished, he went into a concrete room of the school basement and shot at telephone books.
McConnell is charged with possessing a firearm on school grounds. He was released from jail Friday after posting a $100,000 secured bond.
Police said his case will be reviewed by a grand jury. McConnell does not have a prior criminal record.