A student at Webster Schroeder High School is facing a felony charge for a threatening message posted on social media.
Eighteen-year-old Bernardo Melendez, Jr. was arrested for allegedly making a terrorist threat.
School officials say Melendez used Snapchat to post a picture of himself holding what appeared to be a gun and with a message threatening the school community.
A parent notified the school district, and the district contacted police.
Melendez has been suspended.
Webster Police say it appears to be an isolated incident.