Boston Marathon

President Obama assassination attempt

A letter addressed to President Obama tested positive for ricin, the same poisonous substance that was also mailed to a senator, the media reports. The

Tragedy in Boston: How to help

 (CNN) — Patriots Day is the third Monday in April marking the anniversary of the first battles of the American Revolutionary War. It is also

Boston Marathon explosion

Four victims of explosions near the Boston Marathon finish line are at the emergency room at Massachusetts General Hospital, a hospital spokeswoman told CNN. She