The FBI has singled out an individual seen on a video of the Jan. 6 insurrection spraying law enforcement officers, including a Capitol Police officer who died from injuries sustained while defending the building, according to a law enforcement official.

Capitol Police officer Brian Sicknick was injured while fending off the mob of Trump supporters who attacked the U.S. Capitol on Jan. 6. He died the following evening from his injuries.

The Justice Department opened a federal murder investigation into his death.

Before Jan. 6, 18-year-old Bruno Cua was best known in his small town of Milton, Ga., as a great builder of treehouses. These were big, elaborate creations with ladders and trapdoors and framed-out windows. They were so impressive, neighbors paid Cua to build them for their kids.

Updated at 5:42 p.m. ET

Some Democratic lawmakers on Friday sought justification from the Biden administration for Thursday's airstrikes in Syria, marking the first significant test of President Biden's military approach.

Each week, we answer "frequently asked questions" about life during the coronavirus crisis. If you have a question you'd like us to consider for a future post, email us at goatsandsoda@npr.org with the subject line: "Weekly Coronavirus Questions."

With concerns rising about more transmissible variants, I've been reading a lot about double masking. But are there other ways to improve mask fit? What about mask braces and mask tape? And do I need to shave my beard?!

More than 500,000 people have died in the U.S. from COVID-19 since the pandemic hit this country and the world just over a year ago. NPR is remembering some of those who lost their lives by listening to the music they loved and hearing their stories. We're calling our tribute Songs Of Remembrance.

In a unanimous 22-0, a panel of advisers to the Food and Drug Administration recommended that the COVID-19 vaccine developed by Johnson & Johnson be authorized for emergency use in adults during the pandemic.

The vote in favor of the vaccine, which requires only one shot for protection, was taken to answer this question: Do the benefits of the Johnson & Johnson vaccine outweigh its risks for use in people 18 years of age and older.