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.
SAN DIEGO (AP) - A Marine who was left paralyzed by a sniper's bullet in Afghanistan fulfilled a promise to himself on Friday and walked using robotic leg braces in a ceremony at Camp Pendleton, where he was awarded a Bronze Star.
WASHINGTON (AP) - Federal investigators have told Congress that they have recovered data that may include lost emails from one of the pivotal figures in the controversy over the IRS's treatment of tea party groups, congressional aides said Friday.
CARSON CITY (AP) - The Glenbrook - perhaps the most viewed locomotive in Nevada history - roared to life for the first time in 88 years this week in Carson City.
MOUNTAIN BROOK, Ala. (AP) - Frances Moore was hired to help out for the holidays at an Alabama jewelry store in 1939, and she's still there.
AUGUSTA, Maine (AP) - Gov. Paul LePage's administration is facing a potential loss of federal funding to administer its food stamp program over concerns about the state's decision to put photos on cards used to access the benefits.
MELBOURNE, Fla. (AP) - As Bill Cosby's standup tour crumbled with cancellations, the embattled entertainer joked about his usual subjects of family, wives and childhood Friday to a cheering audience that greeted him with a standing ovation as he took the stage and another when he finished.
DEARBORN, Mich. (AP) - Ford said Friday that its new aluminum-bodied F-150 pickup will get up to 26 mpg on the highway, making it the most fuel efficient gas-powered full-size pickup.
NEW YORK (AP) - This year's flurry of corporate mergers may not pay off for shareholders in the long run, but one thing is for sure: The bosses who are selling their companies will do just fine.
ORANGE BEACH, Ala. (AP) - Ruby Holt spent most of her 100 years on a farm in rural Tennessee, picking cotton and raising four children. She never had the time or money to go to a beach.
BOCA RATON, Fla. (AP) - A Florida woman who came forward Thursday became the fourth in recent weeks to say Bill Cosby gave her pills that made her feel groggy then forced himself on her sexually.
SEATTLE (AP) - A man who had been in prison for nearly two decades was released from custody Thursday, two years after his supposed victim recanted allegations that he molested her.
TALLAHASSEE, Fla. (AP) - A Florida State University alumnus and attorney who shot three people at the school's library early Thursday believed the government was targeting him for persecution, detailing his thoughts in a journal and in videos detectives obtained, authorities said.
HARRISBURG, Pa. (AP) - A Philadelphia-area man who once sought food stamps for his service dog was charged with perjury on Wednesday after prosecutors concluded his claims of severe disability were bogus.
SAN FRANCISCO (AP) - Uber Technologies confirmed Wednesday that it is investigating whether one of its general managers violated the popular car-booking service's privacy policies by snooping on a reporter's ride.
WASHINGTON (AP) - In a broad test of his executive powers, President Barack Obama declared Wednesday he will sidestep Congress and order his own federal action on immigration - in measures that could spare from deportation as many as 5 million people illegally in the U.S. and set up one of the most pitched partisan confrontations of his presidency.