TAMPA, Fla. (AP) — A Tampa Bay area teen has been sentenced to 15 years in prison for plotting to blow up his high school last year.

A Hillsborough County judge sentenced 18-year-old Jared Cano on Wednesday. He pleaded no contest in October to charges of threatening to discharge a destructive device and attempting to discharge a destructive device with intention to harm.

Cano was arrested in August 2011 after police say they found bomb-making materials and a “manifesto” outlining Cano’s plans in his home.

Authorities say Cano was planning to bomb Freedom High School. The intent was to cause more casualties than the 1999 Columbine High School massacre, which resulted in 13 deaths before the two shooters killed themselves.

Copyright 2012 The Associated Press.