Even if a majority of mass shootings were preceded by violence against intimate partners or family, that still would hardly serve as a reliable predictor of mass murder. There are, unfortunately, at least 10 million incidents of domestic violence every year, according to estimates reported by the National Coalition Against Domestic Violence. By contrast, there are, on average, about 22 mass shootings annually with at least four fatalities. Were we to predict mass murder on this basis of domestic violence, we would be wrong well more than 99% of the time.
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