MURRYSVILLE, Pa. (AP) - Flailing away with two kitchen knives, a 16-year-old boy with a "blank expression" stabbed and slashed 21 students and a security guard in the crowded halls of his suburban Pittsburgh high school Wednesday before an assistant principal tackled him.
MIDDLETON, Wis. (AP) - Wisconsin Gov. Scott Walker, a potential 2016 Republican candidate for president who lacks a college degree, said Wednesday he would like to complete his course work to get his diploma, but he dodged a question about whether it was necessary to run for higher office.
ORDWAY, Colo. (AP) - Mini-storms of tumbleweed have invaded the drought-stricken prairie of southern Colorado, blocking rural roads and irrigation canals, and briefly barricading homes and an elementary school.
WINTER PARK, Fla. (AP) - A car smashed into an Orlando-area day care Wednesday, killing a girl and injuring 14 others, at least a dozen of them children, and authorities were searching for the driver of an SUV who they say started the crash, officials said.
BOSTON (AP) - Brandeis University has transformed an accolade into "a moment of shaming" by withdrawing a plan to give an honorary degree to a Muslim women's advocate who has made comments critical of Islam, she said Wednesday.
LOUISVILLE, Ky. (AP) - It may sound far-fetched, but scientists are attempting to build a human heart with a 3-D printer.
NEW YORK (AP) - Millions of passwords, credit card numbers and other personal information may be at risk as a result of a major breakdown in Internet security revealed earlier this week.
SANTA CLARA (AP) - Hewlett-Packard will pay the U.S. government $108 million to settle charges that former employees paid bribes to officials in Russia, Mexico and Poland.
NEW YORK (AP) - The rising cost of child care is among likely reasons for a rise in the number of women staying home full-time with their children, according to a new Pew Research Center report released Tuesday.
MILWAUKEE (AP) - A virus never before seen in the U.S. has killed millions of baby pigs in less than a year, and with little known about how it spreads or how to stop it, it's threatening pork production and pushing up prices by 10 percent or more.
WEST BABYLON, N.Y. (AP) - An 85-year-old nursing home patient was the victim of "disgraceful sexual perversion" when a male stripper gyrated in front of her against her will at the suburban New York facility, an attorney for the woman's family said Tuesday.
OMAHA, Neb. (AP) - Railroads are launching a new campaign to highlight the dangers of being near train tracks after a spike in rail deaths last year.
CAPE CANAVERAL, Fla. (AP) - North and South America, get ready for the first eclipse of the year- in color.
GRANTS PASS, Ore. (AP) - The Josephine County Sheriff's Office is understaffed and desperate for help, so they're mulling whether to turn to local volunteers to help process crime scenes.
BRIDGEPORT, Conn. (AP) - A Moroccan man in Connecticut who allegedly expressed interest in using remote-controlled airplanes to bomb a school and a federal building has been arrested by the FBI and detained without bail, federal authorities said Tuesday.
ATLANTA (AP) - UPS expects to deliver more than 34 million packages on the busiest day of the holiday season, double the amount on a normal day.
WASHINGTON (AP) - AT&T is being sued by the government over allegations it misled millions of smartphone customers who were promised unlimited data but had their Internet speeds cut by the company - slowing their ability to open web pages or watch streaming video.
SAN FRANCISCO (AP) - Pacific Gas & Electric Co. (PCG) on Tuesday reported net income of $811 million in its third quarter.
DETROIT (AP) - The head of the nation's biggest car dealership chain says it won't sell used cars being recalled for exploding air bags due to conflicting advice from automakers and lack of direction from the government.
LAGUNA BEACH (AP) - Personal information about more than 18.5 million Californians was hacked, stolen or otherwise exposed last year and as many as one-third of those people will become victims of fraud, California Attorney General Kamala Harris said Tuesday in a new report on data breaches in the nation's biggest state.
NEW YORK (AP) - The robots are coming.
WASHINGTON (AP) - Operators who fly drones or model planes near or over large sports stadiums and auto racetracks are breaking the law and can be fined and imprisoned for up to a year, the Federal Aviation Administration warned in a notice posted on the agency's website.
LAGUNA BEACH. (AP) - Apple CEO Tim Cook said Apple's new mobile payment system had over 1 million activations in the first three days after it became available, and is now more widely used than any competing payment system.
MENLO PARK (AP) - Facebook grew its advertising revenue by 64 percent in the third quarter, helped by a boost in mobile ads that are becoming an increasingly large chunk of the social networking giant's overall advertising business.
HARTFORD, Conn. (AP) - The father of a Connecticut third-grader filed a federal lawsuit Tuesday saying his daughter has been unfairly barred from school amid fears she may have been exposed to the Ebola virus while in Africa.
DENVER (AP) - One of three suburban Denver girls who authorities say tried to join Islamic State militants in Syria was confused about what her role would be if she had actually made it there, the girl's father said Tuesday.
LAS VEGAS (AP) - The Harmon Hotel tower was designed to soar 48 stories over MGM Resorts International's massive CityCenter complex, offering hotel guests and condominium owners unparalleled views at the heart of the Las Vegas Strip.
LOS ANGELES (AP) - An environmental group asked a federal court Tuesday to review its claim that California's last operating nuclear power plant is violating federal law and should be shut down at least temporarily.
PHOENIX (AP) - A sheriff's detention officer shot and killed a jail inmate in Phoenix who slipped out of his restraints, ran away and struggled with another officer over a gun Tuesday, authorities said.
ATLANTIC, Va. (AP) - An unmanned commercial supply rocket bound for the International Space Station exploded moments after liftoff Tuesday evening, with debris falling in flames over the launch site in Virginia. No injuries were reported following the first catastrophic launch in NASA's commercial spaceflight effort.