"Some stories don't have a clear beginning, middle and end. Life is about not knowing, having to change, taking the moment and making the best of it, without knowing what's going to happen next. Delicious ambiguity."

-- Gilda Radner, American comedian (1946-1989)

Singer Joe Cocker is 65.

Singer-actress Cher is 63.

Actor-comedian Dave Thomas is 60.

Musician Warren Cann is 57.

Actor Dean Butler is 53.

Ron Reagan is 51.

Rock musician Jane Wiedlin (The Go-Go's) is 51.

Actor Bronson Pinchot is 50.

Singer Susan Cowsill is 50.

Actor John Billingsley is 49.

Actor Tony Goldwyn is 49.

Singer Nick Heyward is 48.

TV personality Ted Allen is 44.

Actress Mindy Cohn is 43.

Rock musician Tom Gorman (Belly) is 43.

Actor Timothy Olyphant is 41.

Rapper Busta Rhymes is 37.

Actress-singer Naturi Naughton is 25.

On May 20, 1506, explorer Christopher Columbus died in Spain.

In 1927, Charles Lindbergh took off from New York's Roosevelt Field in Long Island aboard the Spirit of St. Louis on his historic solo flight to France.

In 1961, a white mob attacked a busload of Freedom Riders in Montgomery, Ala., prompting the federal government to send in U.S. marshals to restore order.

In 1999, an armed 15-year-old boy opened fire at Heritage High School in Conyers, Ga., wounding six students.

In 2004, President George W. Bush made a rare visit to Capitol Hill, where he sought to ease Republican lawmakers' concerns over the Iraq campaign.

In 2008, Sen. Edward Kennedy was diagnosed with a cancerous brain tumor.