5 Things to Know This Morning

— -- Your look at the five biggest and most buzz-worthy stories of the morning.

1. Robin Williams' Kids Can't Understand Why He Couldn't 'Find it in his Heart to Stay'

The children of the late actor Robin Williams spoke out for the first time about their famous father's death Tuesday, saying they'll always cherish their memories of him and can't understand how he could take his own life when he was loved so much by so many.

"Yesterday, I lost my father and a best friend and the world got a little grayer. I will carry his heart with me every day. I would ask those that loved him to remember him by being as gentle, kind, and generous as he would be. Seek to bring joy to the world as he sought," Zak Williams said in a statement released through the late actor's rep.

2. Late-Night Talk Show Hosts Honor 'Best Guest' Robin Williams

Late-night host Conan O’Brien called Robin Williams “the best talk show guest in the world” Tuesday – and he was probably right.

Williams, who died Monday at age 63, brimmed with a manic, frenetic energy, buzzing from one impersonation to the next. Talk to Williams, and you might as well be talking to 18 different people at once.

3. Lauren Bacall, Star of Hollywood and Broadway, Dies at 89

Lauren Bacall, the sultry actress who burst into stardom with her taunt to Humphrey Bogart, "You know how to whistle don't you? You just put your lips together and blow," has died, sources told ABC News. She was 89.

The 1944 film in which she uttered those lines, "To Have and Have Not," not only made her a star at 19, but the onscreen romance turned out to be so convincing because it mirrored the real-life romance between the two stars.

4. After Syria Flap, Hillary Clinton Plans on ‘Hugging It Out’ With Obama

Well, this is bound to be awkward.

President Obama and his former secretary of state, Hillary Clinton, are slated to appear together at a private party in Martha’s Vineyard on Wednesday. But when she took a swipe at his oft-repeated foreign policy slogan in a recent interview, the night probably got a little more complicated.

Not to worry though. According to Clinton spokesperson Nick Merrill, the former secretary of state looks forward to “hugging it out” with the president at the party.

5. A Handful of Scientific Facts About Lefties

Today is International Left-Handers Day. On the one hand, let’s celebrate the 10 percent or so of the population that favor their left hands for important tasks. On the other hand, this is the perfect time to toss out five little-known scientific facts about lefties.