Alleged School Attack Plot Foiled in Minnesota

Police say John LaDue, 17, was "fully prepared and ready to go" with a violent shooting and bombing spree.
2:02 | 05/02/14

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Transcript for Alleged School Attack Plot Foiled in Minnesota
We're going to get to all the morning news, starting with the frighteni frightening plot in Minnesota. Reporter: Police say the small Minnesota town narrowly averted a bombing and shooting spree by a teenager hell bent on destruction. John LE due is in jail. Charged Thursday with attempted murder and explosive devices. He was planning on killing his parents and siblings. And then, going to this junior and senior high school in waseca, Minnesota, to murder as many as of classmates as possible, in cold blood. He planned to set off numerous bombs in the lunch hour. Kill the resource officer as he responded to help, set fires and shoot students and staff. He planned to be killed by responding law enforcement officers. Reporter: Police say a 180-page journal recovered in his home Tuesday, laid out his alleged murderous plans in great detail. And also noted his obsession with other mass shooters, including the columbine killers and the Virginia tech murderer. According to authority, the attack had originally been planned for April 20th, the anniversary of the columbine massacre. He was preparing. He intended of doing a great amount of harm. Reporter: They say Ladue had been training for the last ten months. Setting off practice bombs at this nearby elementary school playground. The tiny town of waseca, population 9,400, stunned. I can't believe it. It's shocking completely. I wouldn't have guessed at all. Reporter: Ladue was arrested after someone saw him acting suspiciously at a public S locker. In that locker and at his home, police allegedly found an arsenal, with an assault rifle, other firearms, and numerous prepared bombs, including a pressure cooker explosive device, similar to what was used by the Boston marathon terrorists. We have escaped what could have been a horrific experience. Reporter: While this young man was so angry is not yet known. The FBI is now tracking a wave of mass violence. This plot comes on the heels of the stabbing spree in Pittsburgh and the recent tragedy at ft. Hood.

This transcript has been automatically generated and may not be 100% accurate.

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