Police in California say a teen threatened to carry out attacks similar to the massacre in Connecticut.
Now, the 18 year-old is facing felony criminal threat charges.
Investigators say Sergio Cabada posted a message online saying he supported the school shooter and thought of doing something similar.
Within hours of posting the message, investigators tracked the teen down to the northern California city of Suisun.
Police say they seized several items from the teens home to prevent any future acts of violence by the young man.