A 19-year-old Greenwich High School boy was arrested after he threatened to kill fellow students.
GHS was placed on lockdown Thursday after Gianfranco Romero, of 168 North Water Street, told classmates he had a gun in his backpack and was planning to shoot students outside of school.
The teenager was quickly apprehended.
No one was harm during the lockdown and police said no weapons were recovered.
Romero, who was arrested last November for third-degree assault and disorderly conduct stemming from a domestic dispute, is schedule to appear in state Superior Court on April 19.