Officer William F. Evans was the second Capitol Police officer to lie in honor this year. Officer Evans was killed in the line of duty when a vehicle rammed into him and another officer at a barricade near the U.S. Capitol.

A police officer was shot and classes were canceled at a Knoxville, Tenn., school for two days after an armed student was killed in an encounter with the police on Monday.

Officials from Brooklyn Center, Minn., a suburb outside of Minneapolis, held a news conference after an officer fired her gun on Sunday during a traffic stop, killing a Black man. Brooklyn Center is less than 10 miles away from the trial of Derek Chauvin.

Representative Matt Gaetz of Florida, who is the subject of a sex-trafficking inquiry, defended himself on Friday, and said former President Donald J. Trump, Representative Marjorie Taylor Greene and others had offered him encouragement.

Gun salutes were fired across the United Kingdom on Saturday for Prince Philip, the Duke of Edinburgh, who died on Friday at 99.

Gov. Gretchen Whitmer of Michigan called on residents of the state to exercise caution and practice upholding social distancing measures as coronavirus cases across the state spread.

A lawyer for Joel Greenberg, an indicted former official in Florida, said on Thursday that Mr. Greenberg may cooperate as a witness against Representative Matt Gaetz in a Justice Department inquiry, including whether Mr. Gaetz had sex with a 17-year-old girl.

President Biden outlined steps he would take to combat gun violence, vowing to create change despite stalling in Congress.

The Los Angeles County Sheriff said on Wednesday that Tiger Woods was driving at about 85 m.p.h. in a 45 m.p.h. zone when he crashed his sport-utility vehicle in February and that there were no signs of impairment.

Regulators in Britain and the European Union both said on Wednesday that blood clots were a possible rare side effect of the AstraZeneca Covid-19 vaccine. Britain said it would offer alternative vaccines for adults under 30.