It was a gruesome end to what should have been a celebration of triumph.
One man's legs were instantly blown off, yet he kept trying to stand up.
Exhausted marathoners had to muscle the energy to flee the bloody scene.
And more than 140 people were hospitalized, some in critical condition.
As authorities try to figure out who triggered the deadly bombings Monday at the Boston Marathon, which killed an 8-year-old boy and two others, many are at a loss to explain why anyone would target the annual event that celebrates thousands of runners from around the world.FULL STORY
It's been five days since Kaufman County's top prosecutor and his wife were found shot to death in their own home.
Five days of fear as the killer or killers remain at large.
Five days of wondering whether another criminal justice official might be the next target.
If authorities are any closer to solving the homicides of District Attorney Mike McLelland, his wife Cynthia, or his chief felony prosecutor, Mark Hasse, they haven't said so publicly.
But county government offices will shut down Thursday to give the community a chance to honor the McLellands at a public memorial in Mesquite, Texas.
A funeral will follow on Friday, marking another solemn chapter in this harrowing saga.FULL STORY
A set of large tire tracks.
It's one of the tenuous clues that could help authorities figure out who killed Kaufman County's top prosecutor and his wife.
The skid marks near Mike and Cynthia McLelland's home appear to be from two large vehicles.
But other than that, the case is still a giant mystery.FULL STORY
The manhunt for whoever gunned down two local prosecutors faces a steep battle, even with a deluge of local, state and federal authorities scouring for clues.
Law enforcement sources say investigators are starting from scratch, with no leads in deaths of Kaufman County District Attorney Mike McLelland and his wife, Cynthia, CNN affiliate WFAA reported.
Nor do officials have any further ideas on who killed McLelland's chief felony prosecutor, Mark Hasse, who was shot to death outside the county courthouse in January.
But justice officials across the state are on high alert, unsure if or when a similar strike might occur.
"This, I think, is a clear concern to individuals who are in public life, particularly those who deal with some very mean and vicious individuals - whether they're white supremacy groups or drug cartels that we have," Texas Gov. Rick Perry said.FULL STORY
Frayed nerves and a palpable tension cloak this quiet Texas county where the FBI, the Texas Rangers and half a dozen other agencies are on the hunt for the killer or killers bent on taking out top criminal justice officials.
Kaufman County District Attorney Mike McLelland and his wife, Cynthia, were found dead in their house Saturday, two months after an assistant district attorney was gunned down in broad daylight outside the county courthouse.
The killings have residents and prosecutors in Kaufman, east of Dallas, on edge - and on guard.FULL STORY
After days of speculation, the world may learn Monday what killed former Russian oligarch Boris Berezovsky.
The body of the former tycoon was removed from his London-area house overnight, two days after it was found, Thames Valley police said Monday.
An autopsy will take place at 9 a.m. ET to determine how he died.FULL STORY
In just over a day, rebels seized the Central African Republic's capital, forced the president out of the country and declared the nation had "opened a new page in its history."
But no one knows what the next page will say.
Rebels say their takeover opens a bath for peace and democracy.
Yet questions abound over the future of impoverished, landlocked country - and what this uprising means for its 5.1 million residents.FULL STORY
Rebel Free Syrian Army Chief Riad al-Asaad is in stable condition after blast targeted his car, the group's spokesman said.
Al-Asaad, who is not related to Syrian President Bashar al-Assad, was injured during a visit to Deir Ezzor, Free Syrian Army spokesman Louay Almokdad said.
However, the Local Coordination Committees of Syria - and opposition group - disputed reports that al-Asaad was injured, saying a man with a similar name was actually wounded.FULL STORY
The deluge of snow from the Rockies to the Midwest won't go away anytime soon, no matter what the calendar says.
Parts of eight states will be under winter storm warning Sunday, despite the fact it's not winter anymore.
The storm threatens to pummel a swath from Missouri to Ohio with 6 to 10 inches of snow, the National Weather Service said.FULL STORY
A dispute between a Muslim gold shop owner and two Buddhist sellers erupted in clashes that left four people dead, at least 20 injured and four mosques burned to the ground in central Myanmar, police said Thursday.
The clashes began Wednesday morning in Meiktila Township after a quarrel between the shop owner and the sellers, police said. The sellers were beaten up by four other Muslim shop owners, police said.
In retaliation, Muslims and Buddhists took to the street, torching each others' houses and schools, said Police Lt. Col. Aung Min.FULL STORY
Russia's child rights ombudsman slammed Texas prosecutors for deciding not to charge the adoptive parents of a Russian boy who died suddenly in January, Russia's RIA Novosti news agency reported Tuesday.
The Ector County district attorney's office said Monday that a grand jury declined to indict Laura and Alan Shatto, the adoptive parents of 3-year-old Max Shatto.FULL STORY
After witnessing two of the deadliest mass shootings in U.S. history, Colorado is expected to pass a series of gun control laws Wednesday.
Gov. John Hickenlooper will sign three bills into law Wednesday, his office said. The new legislation includes:
– A 15-ammunition limit on magazines;
– A universal background check for prospective gun buyers; and
– A requirement for gun purchasers to pay for their own background checksFULL STORY
Hopes for a peaceful, credible alternative to Syria's embattled government now rest largely on the shoulders of a U.S.-educated Kurdish businessman.
A Syrian opposition alliance elected Ghassan Hitto, an information technology executive, to lead its provisional government.
Hitto went to college in Indiana and lived for many years in Dallas.
The role of the provisional government he will lead will likely be spelled out at a Tuesday news conference by the National Coalition for Syrian Revolutionary and Opposition Forces.FULL STORY
Pakistani officials have arrested a suspect in connection with the gruesome 2002 murder of Wall Street Journal reporter Daniel Pearl.
Qari Abdul Hayee is believed to be the one who facilitated Pearl's kidnapping, a senior Pakistani official said.
Pearl was kidnapped while researching a story in Karachi about Pakistani militants and the so-called "shoe bomber" Richard Reid. He was later beheaded, and a video of his killing was sent to U.S. officials.FULL STORY
The spectacular, airborne escape of two Canadian inmates Sunday stunned witnesses and showcased the illicit ingenuity behind one of the more creative styles of prison breaks.
But while astonishing, helicopter escapes are not unheard of. For decades, crafty inmates have fled into the sky - some with more success than others.
Here are five epic helicopter escapes:FULL STORY
Even by dramatic jailbreak standards, this escape was particularly brazen.
Two men posing as tourists reportedly commandeered a helicopter from a Canadian tour company, ordered the pilot to fly over a detention center near Montreal, hoisted two inmates using cables or ropes into the hovering aircraft - and zipped away.
All in broad daylight. All in full view of incredulous witnesses.FULL STORY
The latest in a series of beleaguered Carnival cruises made its way back to port early Sunday, capping a harrowing week for passengers aboard several troubled ships.
The Carnival Legend arrived in Tampa, Florida, hours ahead of schedule Sunday morning after propulsion system problems hampered its sailing speed.FULL STORY
With the carnage in Syria mounting out of control, there's only one thing left to do, France says: Lift a European Union embargo and start arming rebels.
"We must convince our partners, particularly in Europe, that we have no other choice but lift the arms embargo in favor of the (opposition) Syrian Coalition," French Foreign Minister Laurent Fabius wrote in an op-ed for the French newspaper Liberation.FULL STORY
Terrilynn Monette had no problem uprooting her life to help children.
When the California native learned of the "teachNOLA" program, which sends educators to New Orleans to teach in impoverished areas, she packed her bags and headed to Louisiana.
"I always wanted to be a teacher, and what better place to teach than New Orleans, where passionate teachers are needed most?" Monette said in a 2011 video.
Her dedication and excellence in the classroom earned her a "Teacher of the Year" nomination in her district.
But after a night celebrating the accolade with friends, the 26-year-old vanished.FULL STORY