Luigi Mangioni, the suspect in the killing of UnitedHealthcare CEO Brian Thompson, wrote online of the “devastating” effect a chronic back condition had on him as a young man.

Follow NBC News for live updates of the latest coverage from Syria where rebels led by the Hayat Tahrir al-Sham has ousted ...

A coalition of Syrian rebels say they have toppled the government of President Bashar al-Assad and captured the Syrian ...

Follow NBC News live updates for the latest coverage of the murder of UnitedHealthcare CEO Brian Thompson by a masked gunman in New York city.

Follow NBC News' live coverage as Syria celebrates toppling Bashar al-Assad's regime. Russia, Iran and the U.S. react and ...

Latest news and live updates on the Notre Dame Cathedral reopening in Paris, France, following a devastating fire at the ...

Elliot Eastman, an American who went missing from his home in the Philippines, is now feared dead, according to local authorities. NBC News' Valerie Castro has more on the update in the case.

Hayat Tahrir al-Sham militants have taken control of “the majority of the city,” according to The Syrian Observatory of Human ...

The 49ers look to turn around their season with a win in Buffalo against the Bills, who are chasing the top seed in the AFC.