Latest Nation headlines

Sheriff: School officer never went inside to confront gunman

The armed officer on duty at the Florida school where a shooter killed 17 people never went inside to engage the gunman and has been placed under investigation, officials announced Thursday.

Flood shelters open as Midwest’s rivers keep rising

Shelters were open for people forced from their homes by flooding in Indiana and Michigan as rivers continued to rise.

Michael Feinberg, a founder of KIPP schools, fired after misconduct claims

The charter school chain is one of the country’s largest and most successful and offers schools in Massachusetts.

School Safety: What the experts say about preparing for a shooting

The latest shooting has intensified the debate over what tactics to use to protect against imminent danger, including whether teachers should carry guns or hide with their students.

Trucker killed by falling metal conduit inside tunnel

The section fell from the roof of a Pennsylvania Turnpike tunnel.

Grand jury indicts Missouri governor who admitted affair

Missouri Governor Eric Greitens faces a felony invasion of privacy charge for allegedly taking a compromising photo of a woman with whom he had an affair in 2015.

JFK: 50 Years Later

Special section

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A five-part series examining the profound impact of former President John F. Kennedy’s assassination.

Globe Investigations

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//c.o0bg.com/rf/image_90x90/Boston/2011-2020/2013/10/01/BostonGlobe.com/Special/Images/magnifying_glass1500618-081--90x90.jpg Recent investigative reports

Read recent stories and ongoing investigations from the Globe’s journalists.

Gay marriage in the US

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//c.o0bg.com/rf/image_90x90/Boston/2011-2020/2013/08/01/BostonGlobe.com/National/Images/Untitled-12.jpg Timeline of gay marriage in US

In the early 1970s, there were zero states banning or allowing same-sex marriage. Now it’s legal nationwide, and all bans have been overturned.

Instagram

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A live stream of Instagram posts from The Boston Globe photo department.