Elmont Memorial High School Weapon Incident: 18-Year-Old Student Arrested After Switchblade Found

An 18-year-old student was arrested after a switchblade was discovered inside his backpack at Elmont Memorial High School in Nassau County, New York, on Tuesday, November 10, 2026.

According to Nassau County police, officers from the Fifth Precinct responded to a 911 call at approximately 1:50 p.m. at the school, located at 555 Ridge Road in Elmont.

Police said a switchblade knife was recovered from the student’s backpack. School staff detained the student while waiting for officers to arrive, and he was subsequently taken into police custody without incident.

Authorities identified the student as Dayvion Campbell, 18, of Elmont. He was charged with criminal possession of a weapon in the fourth degree and released on an appearance ticket. His case is scheduled to return to the Youth Section of the First District Court in Hempstead at a later date.

Sewanhaka Central High School District Superintendent Regina Agrusa said school officials contacted law enforcement after discovering the item and followed the appropriate safety procedures. She also stated that no threats had been made.

The incident prompted concern among members of the school community, although the reports reviewed did not indicate that anyone was injured.

The case remains subject to the legal process. The charge is an allegation, and Campbell’s guilt has not been established in court.