Lucy Perkins

The three state agents who were under investigation after they arrested a University of Virginia honors student in March returned to active duty on Monday.

Air traffic controllers' work schedules can lead to chronic fatigue, according to a study conducted by NASA researchers for the Federal Aviation Administration that was completed in December 2012 and published online Monday.

The Associated Press, which first reported on the findings, says the study came about after the National Transportation Safety Board made a recommendation to the FAA and the National Air Traffic Controllers Association that they change controllers' schedules to provide more time to sleep.

The news service adds:

Nick Symmonds, an American middistance runner, won't be competing in the world championships in Beijing this month.

Symmonds, who is a U.S. National champion and has competed in the Olympic Games, failed to sign a terms and conditions agreement with USA Track & Field that is necessary to be part of the team. He has a personal sponsorship deal with Brooks Running, while the American world championships team is sponsored by Nike.

A year after he was in Ferguson, Mo., a reporter at The Washington Post has been ordered to appear in court.

A hiker was killed in Yellowstone last week and his body was found partially eaten.

The suspect? A mother grizzly bear. The hiker was identified Monday as Lance Crosby, who had been working for Medcor, an organization that runs urgent care clinics in the park, according to a National Park Service press release. Wire services say he was 63.

A woman who allegedly shot and killed a social worker last week just outside Montpelier in Barre, Vt., appeared in court Monday. The alleged shooter, Jody Herring, is being held without bail.

Police say that Herring reportedly shot Lara Sobel, 48, a social worker at the Department for Children and Families, because Herring was upset about losing custody of her daughter, according to the Associated Press.

The Defense Department says the wife of a senior leader of the self-proclaimed Islamic State was released into the custody of the Iraqi government today.

Nasrin As'ad Ibrahim, also known as Umm Sayyaf, had been detained by U.S. forces in Irbil, Iraq. She had been there since May 15 when her husband, Abu Sayyaf, was killed by U.S. Special Operations Forces during a raid against the network in Syria.

Pennsylvania Attorney General Kathleen Kane is facing criminal charges for allegedly leaking grand jury information and then lying about it under oath.

Kane is charged with perjury and obstruction, among other things, according to the criminal complaint.

NPR's Jeff Brady filed this report for Newscast:

The Newseum in Washington, D.C., has announced that it will acquire the set of The Daily Show with Jon Stewart after the host's last episode airs on Aug. 6. The museum devoted to the news says the set will be available for future display.

Updated at 9:20 p.m.

Three people were slightly injured at a movie theater in Antioch, Tenn., Wednesday in an attack by a man, who police say had a hatchet, pepper spray and a pellet gun. Officials identify the man as Vincente David Montano, 29, of Nashville. He was fatally shot by police.

Murfreesboro, Tenn., police say Montano was arrested there in 2004 and had four commitments for psychological incidents in 2004 and 2007. Murfreesboro police had considered him a missing person since Monday.

In a mesmerizing video, a researcher explains the math behind what seems like magic — photographs in which the view is obscured by things like chain-link fences and reflections become free of clutter with just a few clicks.

Updated at 3:15 p.m. ET

Our Newscast unit reports that Malaysian Prime Minister Najib Razak announced at a news conference Wednesday that pieces of a jet have been identified:

"Today, 515 days since the plane disappeared, it is with a very heavy heart that I must tell you that an international team of experts have conclusively confirmed that the aircraft debris found on Reunion island is indeed from MH370," he said.

One of the world's most prominent free divers is missing off the coast of an island called Formentera, near Ibiza, Spain. Natalia Molchanova of Russia was on a recreational dive on Sunday when she was separated from companions, according to AIDA, the worldwide federation for free diving. The organization calls her the most accomplished and most famous female free diver in the world.

The family of Sandra Bland, who was arrested in Prairie View, Texas, and was later found dead in her jail cell, announced Tuesday that they're suing authorities in Texas.

NPR's Wade Goodwyn reported for our Newscast unit that the wrongful-death lawsuit names the Texas state trooper who arrested Bland, Waller County, the Texas Department of Public Safety and two guards at the jail. "Among other things, the lawsuit accuses the state trooper of depriving Bland of her constitutional rights," Wade says.

Updated at 1:30 a.m. ET

Delta says it will no longer allow freight shipments of big game trophies. The decision follows the killing of a popular lion in Zimbabwe.

The airline said in a statement on Monday that, effective immediately, it "will officially ban shipment of all lion, leopard, elephant, rhinoceros, and buffalo trophies."

Toy guns that look real should no longer be sold in New York.

NPR's Joel Rose reports that retailers who were selling realistic-looking toy guns have agreed to halt their sales of the product. Wal-Mart, Amazon and other retailers have also agreed to pay $300,000 in fines as part of a settlement announced Monday.

An investigation by the New York attorney general's office found more than 6,000 toy guns that violate New York law were sold in the state in the past three years.

As wildfires continue to blaze across California, one fire is more expansive in its reach than others. It's called Rocky Fire, and it began last week. It has already burned through at least 60,000 acres.

The Rocky Fire, one of numerous active wildfires in the state, is north of San Francisco, and member station KQED reports it is roughly double the size of the city.

Leo and Hercules are the two research chimpanzees who were front and center in a recent habeas corpus case. While the organization that argued for their release lost their case, the chimps will be retired.

Stony Brook University, where they were used for physiological research, announced on Friday that the project had concluded, writes Reuters.

Zimbabwe is seeking the extradition of Walter Palmer, the American dentist who killed a famous lion named Cecil, which was being tracked in a university study.

Dissident Chinese artist Ai Weiwei, who was originally granted only a 20-day visa to visit Britain, will now receive the six-month visa he applied for. A spokesperson for the U.K. Home Office explains that the head of the department, Theresa May, was not consulted over the staff's decision to allow only a shorter stay.

"She has reviewed the case and has now instructed Home Office officials to issue a full six-month visa," the spokesperson says. "We have written to Mr. Ai apologizing for the inconvenience caused."