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The Mystery Surrounding a 14-Year-Old Boy Accused of Killing His Math Teacher in Mass.

48 hours after a deadly shooting in Nevada, another teacher is found dead.
02:35 | 10/23/2013

Transcript for The Mystery Surrounding a 14-Year-Old Boy Accused of Killing His Math Teacher in Mass.

Now we move on to the new tragedy at another american school, this time a high school in massachusetts. 48 hours after a 12-year-old shot a teacher in reno, another beloved teacher found dead,... See More
This transcript has been automatically generated and may not be 100% accurate.
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