Cops say Kevin Chavez made an online threat against a high school party with an air rifle resembling an AR-15.

Southampton Police

Homecoming party cut short by Snapchat threat featuring AR-15 replica

October 08, 2018 - 10:09 am

SOUTHAMPTON, NY (1010 WINS) -- Village police are continuing their investigation into a social media threat that abruptly ended the Southampton High School homecoming after party on Saturday night.

A student told security about a Snapchat post of three males in a vehicle posing with what appeared to be an AR-15, along with the message 'pull up to after homecoming SH.'

Security officials called the cops and more than 20 state troopers and local police arrived to put the school on lockout -- meaning no one could enter or leave.

Students were released to their families around 11 p.m.

"We appreciate the response of our local police department and thank all parents for their patience during the dance dismissal process," Southampton High School principal Brian Zahn said in a statement.

By midnight, the investigation led to the arrest of 19-year-old Kevin Chavez in East Hampton. Cops say they recovered a replica AR-15, which turned out to be a Sig Sauer airgun -- the one they believe was used by Chavez in the online threat.

Chavez was given a desk appearance ticket, and taken to Stony Brook University Hospital for a psychological evaluation.