Six months. 28 mass killings in the US. That's the worst yet, and all but one case involved guns
apnews.com
Unrelenting bloodshed across the U.S. this year has led to the grimmest of milestones: The deadliest six months of mass killings recorded since at least 2006.

From Jan. 1 to June 30, the nation endured 28 mass killings, all but one of which involved guns. The death toll rose just about every week.