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

Boys And Girls Playing Twister
A boy and girl play the game Twister, as other young people watch in a paneled living room, circa 1968. Hulton Archive via Getty Images

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Good morning. Here are some of the headlines we're following this morning:

1. Canada’s Monster Blaze Keeps Growing

Gusting winds and "tinder-dry" conditions were feeding the beast of a blaze in western Canada early Friday, as officials warned it could be days or weeks before evacuated locals can return home. Read more in NEWS.

2. Paterno Allegedly Knew of Sandusky Abuse in 1976

The late Penn State University football coach Joe Paterno knew about sexual abuse allegations against former assistant coach Jerry Sandusky as early as 1976, according to an assertion in a Philadelphia court order made public. Read more in NEWS.

3. Paul Ryan: I’m ‘Not Ready’ to Endorse Trump

The House speaker said Thursday that he is "not ready" to endorse presumptive Republican nominee Donald Trump. Ryan said Trump needs to "do more to unify this party, to bring all wings of the Republican Party together." Read more in POLITICS.

4. ‘Blue Wall’ Gives Trump Little Room for Error

Even before candidates were decided in the 2016 presidential election, Democrats started with a major advantage — thanks to changes in the Electoral College — over Trump. Read more in POLITICS.

5. FBI Interviews Clinton Aides Over Email: Sources

Some of Hillary Clinton's top aides when she was secretary of state have been interviewed by the FBI "within the past few months," officials familiar with her email investigation have confirmed to NBC News. Read more in NEWS.

6. Why Race to Be London's Mayor Resonates Miles Away

As Londoners awaited the results of a bruising battle to become the city's next mayor Friday, the race was proving just as captivating for many 3,700 miles away in Pakistan. The leading candidates in Thursday's election both boast strong connections to the Islamic republic. Read more in NEWS.

7. ‘Grim Sleeper’ Serial Killer Found Guilty

Family members of victims in the "Grim Sleeper" serial killings shed tears and came together in prayer outside a Los Angeles courtroom after Lonnie Franklin Jr. was found guilty Thursday on 10 counts of murder, bringing some measure of closure. Read more at NBC LOS ANGELES.

Nightly Spotlight

Sold in over 35 countries, the game that skyrocketed in popularity on "Tonight with Johnny Carson" transcends ages and demographics.