KAY COUNTY, Oklahoma - A Junior at Blackwell High School in Kay County has been arrested for Felony Terrorism Hoax.

Police say Tuesday night he authored a post on Snapchat that showed an AR-15 type rifle, a rifle case, and a bunch of ammunition.  Above the photo was the phrase “Don’t come to school tomorrow.”  

Police were tipped off minutes later that it came from a Blackwell student. 

“He knows he made a horrible decision yesterday. But he's gonna have to face those consequences," said Blackwell Police Chief, DeWayne Wood. 

Blackwell High School classmates told News 9 that this was out of character for the 16-year-old. 

Chief Wood says it will be up to prosecutors whether he will be charged as a juvenile or as an adult.