to kill 30 students and 2 school officials. >> there were two individual faculty members that were specific targets. officers found material in his room that could be used for making explosive devices. >> reporter: those materials included fuses, timers, shrapnel, accelerant and plastic tubing. >> it's always happening somewhere else. it's never going to be happening at your school, your child's school, your city. it's terrifying. >> reporter: jared cano has an extensive criminal record and he was removed from school over a year and a half ago after what school administrators called inappropriate behavior. under his favorite quotations his facebook page he listed "lessons not learned in blood are soon forgotten." the identity of the tipster who alerted police to the plot has been kept confidential, but that individual was praised as a hero. >> thank you, t.j. and friends are speaking up and they were telling our affifiate in tampa last night that cano had trouble controlling his anger. >> that would seem so.