The Associated Press

There were conflicting reports early Wednesday afternoon about whether a suspect was or was not in custody. As of 11:15 a.m. PST, sources with knowledge of the investigation were telling NPR's Tom Gjelten that an arrest had not yet been made.

Microsoft is offering enhanced security for email, storage and other services.

People who turn on the new feature will be asked not just for a username and password, but also a second piece of information, such as a temporary code sent as a text message to a phone on file. Users can have their devices remember the second code, so they're not asked for it again and again.

The FBI says the letters sent to President Barack Obama and Sen. Roger Wicker are related and are both postmarked out of Memphis, Tenn., dated April 8.

In an intelligence bulletin obtained by The Associated Press, the FBI says the letters both say: "To see a wrong and not expose it, is to become a silent partner to its continuance." Both letters are signed, "I am KC and I approve this message."

Legislation giving the Boeing Co. $120 million in incentives for their expansion plans in South Carolina is one vote away from reaching the governor's desk.

The House voted 115-2 Wednesday to approve the bill. Another vote would send it to Gov. Nikki Haley, who is sure to sign it. The Senate approved the measure last week.

Washington Transportation Department crews have reopened the North Cascades Highway. Officials say lighter winter snowfall helped crews open the road nearly a month earlier than they were able to last year.

The highway reopened Tuesday afternoon.

Senate Majority Leader Harry Reid says a letter containing ricin or another poison was sent to the office of Sen. Roger Wicker of Mississippi.

In brief remarks to reporters in the Capitol, Reid did not say when the letter was sent. It's customary for mail addressed to congressional offices to be screened at an off-site facility.

The Washington state House has approved a transportation budget that would allocate $8.4 billion over the next two years.

Under the proposal passed Tuesday, the money would go toward maintenance and preservation of infrastructure and toward existing big-ticket projects like the State Route 520 floating bridge across Lake Washington and the Alaskan Way Viaduct tunnel replacement.

Boston University says a graduate student at the school was one of the three people killed in the bombings at the Boston Marathon.

The Chinese Consulate in New York added the third victim is a Chinese national.

In a statement late Tuesday afternoon, the school said it was not releasing the name or any other information about the student, pending permission from the family.

Don’t expect a decision this week on the fate of the Sacramento Kings.

Seattle Mayor Mike McGinn said NBA Commissioner David Stern cautioned as much during a phone call on Monday. The mayor said he had called to tell the commissioner that “we were pushing ahead here in Seattle."

"He informed me then that he does not expect a decision out of the NBA on Friday, that it will be sometime after the meeting that we’ll get a decision made," McGinn said.

Only about 1 in 10 people who need treatment for substance abuse in Washington state are currently getting that help. State officials believe that could change dramatically next January when thousands more become eligible for insurance because of health care reform.

Health care reform and expansion of Medicaid are expected to change that picture for as many as 166,000 people.

American Airlines says it has fixed an outage in its main reservations system that is disrupting travel for thousands of passengers whose flights have been delayed or canceled.

American Airlines spokeswoman Stacey Frantz said Tuesday that the system was fixed by 4:30 p.m. EDT. But the airline expects to see flight delays and cancellations throughout the rest of the day.

A 78-year-old Lake Stevens man running his third Boston Marathon was near the finish line when he was knocked down by one of two bomb blasts and caught in a news photograph that quickly went viral.

Bill Iffrig told The Herald of Everett that he heard a noise Monday and found himself on the ground.

"It was only 5 feet away from me," he said. "It was really loud."

The explosives used in the deadly Boston Marathon bombing were contained in 6-liter pressure cookers and hidden in black duffel bags on the ground, a person briefed on the investigation told The Associated Press on Tuesday.

One of the explosives contained shards of metal and ball bearings, and another contained nails, the person said.

A second person briefed on the investigation confirmed that at least one of the explosives was made out of a pressure cooker. Both spoke on condition of anonymity to discuss an ongoing investigation.

Two bombs blew up seconds apart Monday at the finish line of one of the world's most storied races, tearing off victims' limbs and leaving the streets spattered with blood and strewn with broken glass. Three people were killed, including 8-year-old Martin Richard, and more than 170 were wounded.

A 29-year-old restaurant manager has been identified as another victim killed in the blast. 

Her father said Krystle Campbell, of Medford, Mass., had gone with her best friend to take a picture of the friend's boyfriend crossing the finish line on Monday afternoon.

William Campbell said his daughter, who worked at a restaurant in nearby Arlington, was "very caring, very loving person, and was daddy's little girl." He said the loss has devastated the family.

The third victim was a graduate student at Boston University, the school said. 

President Barack Obama says the explosions at the Boston Marathon are being investigated as an act of terror, although authorities still don't know who is responsible.

He called the bombing "a heinous and cowardly act" used to target innocent civilians.

The boy who was killed in the Boston Marathon bombings was remembered by neighbors Tuesday as a vivacious 8-year-old who loved to run and climb.

Martin Richard was among the three people killed in the explosions Monday, according to U.S. Rep. Stephen Lynch, a friend of the family for 25 years. The boy's mother, Denise, and 6-year-old sister, Jane, were badly injured. His brother and father were also watching the race but were not hurt.