Emma Bowman

Updated at 8:03 a.m. ET

It was a tweet that set off a storm. Was President Trump admitting to collusion between his campaign and Russia? Was he stipulating that the now notorious June 2016 Trump Tower meeting arranged by his son Donald Trump Jr. really was all about getting dirt on Hillary Clinton from a Kremlin-linked Russian lawyer and not adoption issues as President Trump had earlier claimed?

Updated at 7:08 a.m. ET

At least 14 people have been killed and more than 160 others injured in a 6.4 magnitude earthquake that hit the Indonesian island of Lombok Sunday.

The quake damaged dozens of houses and continued to send a wave of aftershocks. The number of those killed and injured could rise as authorities respond to more locations, Sutopo Purwo Nugroho of Indonesia's disaster response agency said in a statement.

For the past three weeks, students across India's capital have been attending a radical new course: happiness.

The Delhi government introduced "happiness classes" in an effort to shift the country's academic focus from student achievement to emotional well-being. In a country that uses standardized testing to determine student success, offers a limited number of seats in top universities and sets high expectations, educators have been seeing mental health consequences.

In the summer of 1994, in Tulsa, Okla., Brandy Carpenter, then 14, had just started dating her crush, 17-year-old De'Marchoe Carpenter.

But before they even had their first kiss, De'Marchoe was arrested for a murder he didn't commit.

At StoryCorps in May, De'Marchoe, 41, and Brandy, 38, remember what first drew them to each other, and the toll that prison took on their relationship.

"You always made me laugh and you always made me smile," Brandy says. "I always wanted you to be around."

On Sunday, Colombia elected a new president, Ivan Duque, a conservative former senator who's pledged to rewrite a divisive peace treaty that ended the country's 50-year-old guerrilla war.

In the second and final round of elections, Duque won 54 percent of the vote, defeating former guerrilla fighter and onetime Bogota Mayor Gustavo Petro, 58, who captured about 42 percent in the runoff. Duque will succeed outgoing President Juan Manuel Santos.

Infamous photographs, taken seconds after Sen. Robert F. Kennedy was shot on June 5, 1968, show him lying on the floor of the Ambassador Hotel's kitchen. A teenage busboy kneels beside him, cradling the senator's head.

That busboy was Juan Romero.

Kennedy was running for president and had just won the California Democratic primary when he was assassinated at the Los Angeles hotel.

Kittie Weston-Knauer, on the cusp of 70 years old, is the oldest female BMX bicycle racer in the U.S.

When she started competing in the late 1980s, she was often the only woman on the track. It was her son, Max Knauer, a champion BMX rider, who introduced her to the sport when he was 10.

Max, now 40, explains that he planted the racing seed after a frustrating day of his mom playing coach.

Updated at 8:48 p.m. ET

After a day of steady rain on Churchill Downs, it was Justify who managed to cross the finish line first in the mud.

Justify brought Hall of Fame jockey Mike Smith a second Derby victory. Smith previously won aboard Giacomo in 2005. Bob Baffert, the trainer of Triple Crown winner American Pharoah, seals his fifth Derby win.

A new exhibit that opens Monday at the United States Holocaust Memorial Museum aims to honor a founding mission.

Five years in the making, "Americans and the Holocaust" contextualizes attitudes in the U.S. during 1930s and '40s persecution and mass murder of Jews in Europe.

Twenty-five years ago, when the building opened, noted Holocaust survivor Elie Wiesel introduced the museum not as an answer to the horrors of genocide but to pose a glaring question: How could this happen?

Roxanne and Dennis Simmonds knew their son as fearless and strong from the day he was born.

"D.J. came out with shoulders of a linebacker," Roxanne says. "He was the first baby I saw that had muscles."

"He wasn't really afraid of anything," Dennis says.

At night, young D.J. would take the dog with him and circle the entire house, to "make sure there's nobody on the grounds," Dennis says, laughing. "I used to say, 'D.J. where you going? It's late.' He would say 'I'm doing a perimeter search, Dad.' "

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