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Study shows firearm waiting periods prevent 750 deaths annually

Roanoke Firearms owner John Markell holds a Glock 9 mm pistol. Photo: Don Petersen / AP

A Harvard Business School study found if all states adopted firearm purchase delay laws, an additional 910 lives could be saved each year, per CNN. The study suggests mandatory waiting periods allow a "cooling off" period for heightened emotions that could lead to crimes and suicide.

Why it matters: Most of the 33,000 gun-related deaths in the United States each year are suicides. Between 2006 and 2014, there were 190,396 people sent to the ER for handgun-related injuries; 55% of those were assault victims.