Faith leaders are stuck in a quandary. They're trying to balance a mission of keeping houses of worship welcoming spaces with a responsibility to tighten security.
Hospitals are preparing for how to handle mass shootings in case the next one is in their backyard. One difficult call is whether to lockdown the facility, which can have emotional consequences.
President Trump proclaimed the gesture "as a mark of solemn respect" for five people killed at the Capital Gazette newsroom. The White House had initially declined to do so, according to the city.
"I did that completely out of a selfish act," said James Shaw Jr. after disarming the gunman. "I was completely doing it just to save myself. Now, me doing that, I did save other people."
Stephen Paddock, the 64-year-old retired accountant and real estate investor, looks like an ordinary hotel guest and casino patron in footage released by the Mandalay Bay resort.
In 2016, Noor Salman's husband opened fire at Pulse nightclub, killing 49 people and wounding dozens more. Salman is accused of aiding terrorism and obstructing justice.
The semi-automatic rifle has been in wide circulation for more than a half-century. In recent years, gunmen have used AR-15-style weapons to carry out many of the country's worst mass shootings.
Thousands descended on Tallahassee to demand legislative action to prevent future school shootings. "This is only the beginning of our history," one student said. "Please be on the right side of it."