School shooters: Know the warning signs

Though there is no single profile for school shooters, people at risk for hurting themselves or others often exhibit warning signs before committing acts of violence. Knowing the signs can help prevent crimes and get people the help they need.
Though there is no single profile for school shooters, people at risk for hurting themselves or others often exhibit warning signs before committing acts of violence. Knowing the signs can help prevent crimes and get people the help they need.

FBI says big changes needed for tip line after Parkland shooting

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