Associate Press World News

NEW YORK (AP) -- Thomas Sohmers, 17, of Hudson, Mass., has been working at a research lab at the Massachusetts Institute of Technology since he was 13, developing projects ranging from augmented reality eyewear to laser communications systems. This spring, his mom, Penny Mills, let him drop out of 11th grade. She says she "could see how much of the work he was doing at school wasn't relevant to what he wanted to learn."...

WEST VALLEY CITY, Utah (AP) -- For the first time, Utah police said Monday they believe Susan Powell's brother-in-law was "heavily involved" in getting rid of her body, even as they announced they couldn't solve the sensational case of a mother's disappearance after a nearly 3 1/2-year investigation....

The devastating tornado that swept through Oklahoma turned houses into matchsticks and sent parents and teachers running to pull children from the wreckage of an elementary school in the eye of the storm. At least 51 people were killed by the 200-mph storm and dozens of homes destroyed. The toll was expected to rise. Here are images from the aftermath :...

NEW YORK (AP) -- Monday's powerful tornado in suburban Oklahoma City loosely followed the path of a killer twister that slammed the region in May 1999....

A list of the 10 deadliest tornadoes in the United States since 1900:...

TULSA, Okla. (AP) -- Deadly tornadoes that have raked communities in Middle America over the past week, including Monday's massive twister that carved a path of destruction through the Oklahoma City suburb of Moore, belie what had been a relatively quiet start of the 2013 tornado season....

NEW YORK (AP) -- As a teenager, Tumblr CEO David Karp would canvass the streets of New York City's Upper West Side, offering to build websites for local businesses. After his freshman year of high school, the precocious, computer-savvy kid decided to drop out altogether to devote more time to his passion for technology....

SAN FRANCISCO (AP) -- Yahoo is buying online blogging forum Tumblr for $1.1 billion as CEO Marissa Mayer tries to rejuvenate an Internet pioneer that had fallen behind the times....

BAGHDAD (AP) -- A wave of attacks killed at least 86 people in Shiite and Sunni areas of Iraq on Monday, officials said, pushing the death toll over the past week to more than 230 and extending one of the most sustained bouts of sectarian violence the country has seen in years....

BAGHDAD (AP) -- Here is a look at the deadliest attacks in Iraq since the withdrawal of U.S. troops on Dec. 18, 2011:...

JERUSALEM (AP) -- Prime Minister Benjamin Netanyahu's senior coalition partner says that reaching a final peace agreement with the Palestinians is unrealistic at the current time and the sides should instead pursue an interim arrangement....

Bruno Mars (AP) -- and his band - kicked off the Billboard Music Awards in silky red suits that matched their silky dance moves, with bright gold disco balls hanging above them....