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Two boys vented their aggression on their own school with teachers and classmates as their target.
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An unnamed six-year old boy shoots and kills a six-year old playmate.
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15 year old Charles kills two classmates. He is sentenced to at least 50 years in prison
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14-year old boy kills his principal and himself.
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14-year old boy slashes the throat of a 14-year old boy.
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16 year old boy kills his grandfather and other adult, four fellow students, a teacher, a security officer and himself.
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Student killed 6 persons (age 6-13) including himself.
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A senior at the University killed 32 people and wounded 17 others and afterwords he commided suiside.
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22 year old boy shoot and killed 11 people, including himself.
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A gunman opens fire at an elementary school in Newtown, killing nearly 30 people, most of them children.
