A Glen Head man has been arrested after police say he assaulted a faculty member inside Ward Melville High School.
According to police, the incident happened on Tuesday after a student let the suspect, Luis Romero, into the building.
Cops say Romero pushed a school worker who noticed he shouldn't have been there.
Campus security held him until police arrived.
Romero is a former student, but it's not clear what he was doing there.