Some of worst mass shootings:
NEW TRIPOLI, Pa. (AP) - A Pennsylvania woman allegedly changed her children's grades after logging into a school computer system using passwords obtained when she worked for the district.
TOLEDO, Ohio (AP) - A 4-year-old girl who went through two years of cancer treatments isn't being allowed to go on a Make-A-Wish trip to Disney World because her father said she's in remission and the trips should go to children who are sicker than his daughter.
HOUSTON (AP) - Through a labyrinth of hallways deep inside a 1960s-era building that has housed research that dates back to the early years of U.S. space travel, a group of scientists in white coats is stirring, mixing, measuring, brushing and, most important, tasting the end result of their cooking.
SAN FRANCISCO (AP) - A California appeals court told Disneyland it must consider allowing use of two-wheel Segways by disabled people.
WASHINGTON (AP) - Barack Obama surprised the nation when he became the first presidential hopeful to raise more than $100 million in one month and later broke with tradition to bypass public money for his 2008 campaign. Now, he could raise eyebrows again: He could be outspent by his challenger.
ATLANTA (AP) - First peanuts, now eggs. Doctors have reversed allergies in some children and teens by giving them tiny daily doses of problem foods, gradually training their immune systems to accept them.
BOSTON (AP) - Taking aim at what they call an abuse of the taxpayers' money, a growing number of states are blocking welfare recipients from spending their benefits on booze, cigarettes, lottery tickets, casino gambling, tattoos and strippers.
CITY'S FISCAL EMERGENCY VOTE SPEEDS BANKRUPTCY: SAN BERNARDINO (AP) - The city of San Bernardino has declared a fiscal emergency to avoid a lengthy mediation process and head straight to federal bankruptcy court.
MIRAMAR, Fla. (AP) - In his first lengthy interview, George Zimmerman said he wanted to apologize to Trayvon Martin's parents for their son's death and insisted he was not in pursuit on the rainy night that he fatally shot the teenager.
COLUMBUS, Ohio (AP) - President Barack Obama's re-election campaign on Tuesday filed a federal lawsuit against Ohio's top elections official in a dispute over the battleground state's law that restricts early, in-person voting during the three days before Election Day.
WASHINGTON (AP) - In a campaign fast growing nasty, the Republican National Committee is trying a gentler approach. President Barack Obama tried to fix the economy, says an ad running in seven battleground states, then tells viewers: "It's OK to make a change."
IRWIN, Pa. (AP) - A fiery Mitt Romney on Tuesday accused President Barack Obama of believing the government is more vital to a thriving economy than the nation's workers and dreamers, scrambling to get back on message by declaring of Obama, "I'm convinced he wants Americans to be ashamed of success."
2 BODIES IN DETROIT RIVER; NO HEADS, HANDS, FEET: DETROIT (AP) - The decapitated bodies of a man and a woman were pulled from the Detroit River and a nearby canal on Tuesday, about an hour before a fisherman discovered body parts just beneath the surface, along with a circular saw and a suitcase.
Cops: Missing hair, selfie led to homicide suspect
TOLEDO, Ohio (AP) - The toxins that contaminated the drinking water supply of 400,000 people in northwest Ohio didn't just suddenly appear.
FAIRFIELD, Texas (AP) - As murky water snakes through a man-made wetland between Dallas and Houston, its shallow ponds of lush vegetation slowly filter out phosphorous and nitrates until, a week later, the water runs clear as a creek into the area drinking supply.
ATLANTA (AP) - A second American missionary stricken with Ebola is expected to fly Tuesday to the U.S. for treatment, following a colleague who was admitted over the weekend to Emory University Hospital's infectious disease unit.