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KNOW IT ALL: Wednesday's Top 7 Stories at NBC News

Here's a look at the stories we're following today.
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Good morning. Here are some of the stories we're following today:

1. 'Even War Has Rules': Bombed-Hospital Charity Wants Answers

Doctors Without Borders on Wednesday called for an unprecedented international and independent humanitarian fact-finding commission into the deadly U.S. bombing of its hospital in northern Afghanistan. The U.S. military has pledged a full investigation and admitted the airstrike on the Kunduz hospital — which killed 22 people — was a mistake. Read more in NEWS.

2. Follow One Refugee's Journey to a New Future

NBC News first met Salma on a sweltering September afternoon in the Greek border town of Idomeni. NBC News followed Salma and her family on their journey — which included sleepless nights, trains, buses and traffickers. This is their story.

3. Mother of Oregon Shooter Wrote About Guns, Autism

The mother of the gunman who killed nine people in a rampage at an Oregon community college wrote in online postings years ago that she was a gun enthusiast and her son had a form of autism. Christopher Harper-Mercer, 26, killed himself as police responded to the scene of the shooting at Umpqua Community College in Roseburg on Thursday, authorities have said. Read more in NEWS.

4. Fantasy Sports Sites in Bet Probe by N.Y. Attorney General

New York Attorney General Eric Schneiderman is going all in on allegations that employees of online fantasy sports companies DraftKings and FanDuel may have leveraged insider information that could let someone make unfair — and highly profitable — bets. Read more in NEWS.

5. Who Are the Americans Aboard the Cargo Ship Lost at Sea?

Some had a taste for adventure. Others wanted to test their courage. And while the 28 Americans aboard the El Faro container ship are a dedicated and diverse crew, one thread seems to run through each of their lives — a respect for the sea. Family members in limbo over their loved ones' fates have been holding out hope that the others are alive — and are sharing their stories. Read more in NEWS.

6. Six Things to Know About the Trans-Pacific Partnership

On Monday, President Obama signed a historic free trade deal with several Asia and Pacific countries to spur trade and growth. Here's 6 things you need to know to be able to make a few intelligent remarks about it at the office coffee machine. Read more in BUSINESS.

7. $69 Flights From U.S. to Europe Coming Soon: Airline CEO

Norwegian Air Shuttle ASA hopes to sell one-way tickets to Europe for $69 as early as 2017 by flying from U.S. airports that have low fees, Chief Executive Officer Bjørn Kjos said in an interview Tuesday. Read more in BUSINESS.

Nightly Spotlight: Thousands Join Yoko Ono to Form Peace Sign

Thousands gathered in New York’s Central Park as a tribute to the late Beatle John Lennon, who would have turned 75 on Friday.