Seth Poppel/Yearbook Library
  • Robin Williams is seen wearing a letter jacker during his senior year at Redwood High School in Larkspur, Calif., 1969.
    Seth Poppel/Yearbook Library
  • Robin Williams and his former wife Valerie Williams after "Saturday Night Live" Taping in New York City, Nov. 11, 1978.
    Ron Galella/Getty Images
  • This Nov. 12, 1979 file photo shows actor-comedian Robin Williams, third from right, dressed as a cheerleader with the Broncos' Pony Express cheerleaders during the filming of an episode of "Mork & Mindy," in Denver.
    AP Photo
  • Robin Williams during People For the American Way gala birthday dinner at Beaux Arts Puck Building in New York City, New York on Oct. 24, 1985.
    Ron Galella/Getty Images
  • Robin Williams is seen at the Academy Awards, Hollywood, Calif., March 25, 1996.
    Steve Granitz/Getty Images
  • Robin Williams during Robin Williams Footprint Ceremony at Mann's Chinese Theatre in Hollywood, Calif., Dec. 22, 1998.
    Steve Granitz/Getty Images
  • Robin Williams performs; "On Stage at the Kennedy Center: The Mark Twain Prize" on Oct. 15, 2001.
    Kevin Mazur/Getty Images
  • Actor-comedian Robin Williams entertains the troops during the United Service Organizations (USO) tour at Baghdad International Airport Dec. 16, 2003.
    Lisa M. Zunzanyika/U.S. Air Force via Getty Images
  • Robin Williams at the HBO & AEG Live's "The Comedy Festival" Show at Caesars Palace in Las Vegas, Nevada, 2006.
    Jason Merritt/Getty Images
  • Robin Williams and his family are seen at the Man of the Year premiere in Los Angeles, Oct. 4, 2008.
    L. Cohen/Getty Images
  • This Nov. 9, 2009 file photo shows actor Robin Williams, right, and his wife Susan Schneider at the premiere of "Old Dogs" in Los Angeles.
    Katy Winn/AP Photo
  • Robin Williams appears onstage at The 2012 Comedy Awards in New York, Saturday, April 28, 2012.
    Charles Sykes/AP Photo
  • Robin Williams at SiriusXM's 'Town Hall' series at SiriusXM Studios on Sept. 25, 2013 in New York City.
    Robin Marchant/Getty Images
  • Actor Robin Williams enters the "Late Show With David Letterman" taping at the Ed Sullivan Theater in this Sept. 25, 2013, file photo in New York City.
    Ray Tamarra/FilmMagic/Getty Images