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

A look at the key headlines.
Image: NFL Draft
Jared Goff of the California Golden Bears stands beside NFL Commissioner Roger Goodell after being picked #1 overall by the Los Angeles Rams during the first round of the 2016 NFL Draft at the Auditorium Theatre of Roosevelt University on April 28, 2016 in Chicago, Illinois.Jon Durr / Getty Images

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

1. 20 Arrested as Crowd Turns Violent Outside Trump Rally

The arrests were made outside a Donald Trump rally in Southern California on Thursday night amid the worst violence since last month's cancellation of a campaign event in Chicago. Fights were seen breaking out and some chanted, "Racists go home!" Others repeatedly yelled, "Whose streets? Our streets!" as police moved to control the crowd. Read more in POLITICS.

2. Foul Play Possible in Florida Teens' Disappearance at Sea

The families of two teenagers who disappeared off the Florida coast during a fishing trip last year suspect that foul play may have been involved — a suspicion that authorities have taken seriously for several months, records reveal. Read more in NEWS.

3. North Korea Sentences U.S. Citizen to 10 Years Hard Labor

The rogue nation on Friday sentenced U.S. citizen Kim Dong Chul of Korean heritage to a decade in prison after convicting him of espionage and subversion — the second American it has put behind bars this year. Read more in NEWS.

4. In Europe's Abortion Debate, Doctor Has Different Approach

On a quiet street in east Amsterdam, the seeds of rebellion are being sown. Or, rather, shipped. Dr. Rebecca Gomperts ensures that women can safely terminate unwanted pregnancies with abortion pills — and today, her vessel is the web. Read more in NEWS.

5. Man Shot With Fake Bomb at TV Station Feared World's End

The man who was shot four times by a sniper Thursday after saying he had a bomb inside a Baltimore TV station believed the world is soon going to end and wanted a message broadcast, a man who said he was the suspect's father told NBC News. Read more in NEWS.

6. Who Did Your NFL Team Draft in the First Round?

University of California, Berkeley, quarterback Jared Goff was the No. 1 pick by the Los Angeles Rams during the first round of the NFL draft on Thursday night. The three-day draft continues Friday. Read more at NBC SPORTS.

7. Rare 'Purple Rain' Memorabilia Up For Sale

A piece of movie memorabilia from Prince's 1984 classic film "Purple Rain" is hitting the auction block. A black and white blazer with leather sleeves was worn by the late music icon in a scene with co-star Apollonia Kotero. Read more at NBC NEW YORK.

Nightly Spotlight

In a city where 25 percent of the population lives below the poverty line and crime is rampant, these kids are getting a chance to rise above— in the form of horseback riding.