Police have arrested three teenagers — ages 13, 16, and 17 — who are believed to have carried out last week's deadly attack on a homeless camp that's known as "The Jungle."
Members of the National Rife Association continue to hold classes and events locally, and many say they're OK with the new rules. Meanwhile, response from the NRA's national leadership has been muted.
Of the 124 officers who died, the largest number (52) were killed in traffic-related incidents, according to the National Law Enforcement Officers Memorial Fund. Another 42 were shot and killed.
In 2012, journalist Mark Follman searched for comprehensive data about America's mass shootings and found that very little existed. So he and his colleagues began compiling a database of their own.
The wave of mass shootings in the U.S. is renewing a debate over treating gun violence as a public health issue. Congress has stood in the way of federal funding for studying injuries and deaths.