BOSTON (AP) - Federal agents zeroed in Tuesday on how the Boston Marathon bombing was carried out - with kitchen pressure cookers packed with explosives, nails and other lethal shrapnel - but said they still didn't know who did it and why.
GUANTANAMO BAY NAVAL BASE, Cuba (AP) - The top medical official at the Guantanamo Bay prison says five detainees were injured in the weekend clash with guards.
WASHINGTON (AP) - The Supreme Court is trying to sort out a wrenching adoption case involving a Native American child, a biological father who first renounced any interest in her and adoptive parents who were eventually ordered to hand her over to the father.
CHICAGO (AP) - Far-flung family members, co-workers and friends frantically used social media, cellphones and even a "people finder" website Monday to try to learn the fate of participants and spectators at the Boston Marathon, where three people were killed and dozens injured after a pair of bombs exploded near the finish line of one of the world's great races.
BOSTON (AP) - Massachusetts Gov. Deval Patrick says no unexploded bombs were found at the Boston Marathon. He says the only explosives were the ones that went off Monday.
MIAMI (AP) - Lined up in front of their dugouts, all wearing No. 42 on Jackie Robinson Day, the Washington Nationals and Miami Marlins stood for a moment of silence to honor bombing victims at the Boston Marathon.
OINT BASE ELMENDORF-RICHARDSON, Alaska (AP) - An Alaska-based military policeman will serve 16 years in prison and will be dishonorably discharged for selling military secrets to a Russian agent, who was an undercover FBI agent, a military panel decided Monday.
LONDON (AP) - With more than 30 marathons being held this weekend alone and big events on the horizon, officials around the world are boosting security efforts in the wake of the fatal bomb blasts that shook Boston's race.
BOSTON (AP) - FBI agents searched a suburban Boston apartment overnight and appealed to the public for amateur video and photos that might yield clues to who carried out the Boston Marathon bombing, while a doctor treating the wounded said one of the victims was maimed by what looked like ball bearings or BBs.
PYONGYANG, North Korea (AP) - North Korea quietly marked a second day of celebrations for its first leader's birthday and issued prickly new rhetoric Tuesday threatening retaliation for what it sees as provocations by South Korea and the United States, who have been watching closely for signs the North may go ahead with a suspected medium-range missile launch.
EL CAJON, Calif. (AP) - A San Diego County man has pleaded guilty to killing his 94-year-old neighbor with a hammer as she slept.
In the wake of the Boston Marathon bombing, Metropolitan Transportation Authority (MTA) has heightened security and additional inspection of the MTA bus and rail system.
SACRAMENTO, Calif. (AP) - California safety officials on Monday activated a statewide threat assessment system in response to explosions at the finish line of the Boston Marathon.
MIAMI (AP) - Carnival Corp. said Monday it will repay the U.S. government an unspecified amount for the costs to taxpayers of responses to disabling accidents on its Triumph and Splendor cruise ships, both of which left thousands of passengers stranded at sea for days.
WASHINGTON (AP) - President Barack Obama, responding to the explosions at the Boston Marathon, says the United States does not know "who did this or why" but vowed that whoever is responsible "will feel the full weight of justice."
BIG BEAR LAKE (AP) - Fire crews are responding to a report of smoke near Southern California's Bear Mountain ski resort.
PHOENIX (AP) - An Arizona woman is getting her first taste of freedom in more than two decades after an appeals court overturned her murder conviction, setting the stage for a retrial as prosecutors seek to put her back on death row.
WASHINGTON (AP) - President Barack Obama faces a high-stakes week of trying to convince a skeptical Congress and a war-weary American public that they should back him on a military strike against Syria.
NASA's newest robotic explorer rocketed into space late Friday in an unprecedented moonshot from Virginia that dazzled sky watchers along the East Coast.