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.
Private groups keeping tabs have wildly different numbers, ranging from 353 to four. There's no consensus on a definition, and advocates point to the data that supports their arguments.
The two states in the news over the past week with high profile mass shootings have taken big steps in recent years to tighten gun laws. Is a focus on open carry or mental health the best way forward?
In a statement from the Oval Office, the president also said the investigation into Wednesday's shooting in San Bernardino, Calif., has been handed over to the FBI.