A 17-year-old student at Palmer Trinity School was arrested Monday morning after he threatened via text message to kill his classmate.
In the text, Daniel Rafael Villacampa wrote that he was going to shoot the victim and then stab him in the neck, police said.
A parent of another student caught wind of the threat and informed Palmetto Bay police.
Police went to the school and interviewed Villacampa. They then found a knife in his possession.
The student told police, "I carry it all the time, but never pull it out."
Villacampa was arrested on charges of aggravated assault with a deadly weapon and possession of a deadly weapon on school property.
A student reacted to the incident by saying it's "sad."
"Just seeing what our world's come to and stuff," Brock Serrate said. "Hoping for a change in the future."