May 19, 20134:51 PM ET

NEW YORK (AP) — The police officer who accidentally killed a Long Island college student along with an armed intruder faced perhaps the most harrowing decision of a law enforcement career: choosing the split-second moment when the risk is so high that you must act to save a life.

May 19, 20134:24 PM ET

ATLANTA (AP) — President Barack Obama, in a soaring commencement address on work, sacrifice and opportunity, on Sunday told graduates of historically black Morehouse College to seize the power of their example as black men graduating from college and use it to improve people's lives.

May 19, 201311:19 AM ET

DAMASCUS, Va. (AP) — Authorities believe the driver who plowed into dozens of hikers marching in a Virginia mountain town parade suffered from a medical condition and did not cause the crash intentionally, an emergency official said Sunday.

May 19, 20135:09 PM ET

BRIDGEPORT, Conn. (AP) — Tens of thousands of commuters are bracing for a difficult trip around southwest Connecticut and to New York City beginning Monday as workers repair the Metro-North commuter rail line crippled by a derailment and crash.