Robin Williams' wife says he had Parkinson's disease
Comedian Robin Williams, who will star in "The World According to Garp," is shown, July 21, 1982, in Los Angeles. (AP Photo)
Zelda Williams, at left, and Robin Williams arrive to the premiere of Old Dogs on Monday Nov. 9, 2009, in Los Angeles. (AP Photo/Katy Winn)
NEW YORK - NOVEMBER 18: Zak Williams and Robin Williams attend the Timo Pre Fall 2009 Launch with Interview Magazine at Phillips De Pury on November 18, 2008 in New York City. (Photo by Jamie McCarthy/WireImage for Timo Wallets LLC)
Robin Williams with son Zak & wife Marsha during 'Death To Smoochy' Premiere at Ziegfeld Theatre in New York City, New York, United States. (Photo by Jim Spellman/WireImage)
SAN FRANCISCO, CA - OCTOBER 26: Zak Williams, son of Robin Williams, throws out the ceremonial first pitch as Zelda and Cody Williams look on before Game Five of the 2014 World Series between the San Francisco Giants and the Kansas City Royals at AT&T Park on October 26, 2014 in San Francisco, California. (Photo by Elsa/Getty Images)
Robin Williams, son Zak & wife Marsha during 'Death To Smoochy' Premiere at Ziegfeld Theatre in New York City, New York, United States. (Photo by Jim Spellman/WireImage)
Robin Williams with son Zak & wife Marsha during 'One Hour Photo' Premiere at Academy Theatre in Beverly Hills, California, United States. (Photo by Gregg DeGuire/WireImage)
Portrait of actor Robin Williams, Marin County, California, 1999. (Photo by Chris Felver/Getty Images)
NEW YORK, NY - AUGUST 12: A makeshift memorial for Robin Williams seen in front of Carolines on Broadway comedy club on August 12, 2014 in New York City. (Photo by Cindy Ord/Getty Images)
This Sept. 25, 2013 photo released by SiriusXM radio shows Robin Williams during the Entertainment Weekly Radio town hall in New York. The town hall series are becoming a programming signature at Sirius XM. (AP Photo/SiriusXM, Jason Shaltz)
Robin Williams in the kitchen in a scene from the film 'Mrs. Doubtfire', 1993. (Photo by 20th Century-Fox/Getty Images)
You're a grown man now and I'm so proud of you. A little bit of you will always be my "Mr Pym". Happy Birthday, @zakpym!
Happy Birthday to me! A visit from one of my favorite leading ladies, Crystal.
Robin Williams, right, and Susan Schneider arrive at the Creative Arts Emmy Awards on Saturday, Aug. 21, 2010 in Los Angeles. (AP Photo/Chris Pizzello)
Robin Williams, star of the new film "One Hour Photo," faces photographers at a screening of the film at the Academy of Motion Picture Arts and Sciences in Beverly Hills, Calif., Thursday, Aug. 22, 2002. (AP Photo/Chris Pizzello)
Actor Robin Williams, left, shares a light moment with fellow actor Billy Crystal prior to the 18th annual American Museum of the Moving Image benefit in New York Wednesday, Feb. 12, 2003. The museum honored Crystal for propelling the medium of the moving image and having a profound effect on the industry. (AP Photo/Shawn Baldwin)
Robin Williams visits a sick child in a scene from the film 'Patch Adams', 1998. (Photo by Universal/Getty Images)
#tbt and Happy Birthday to Ms. Zelda Rae Williams! Quarter of a century old today but always my baby girl. Happy Birthday @zeldawilliams Love you!
Comedian Robin Williams holds the Grammy for Best Spoken Comedy Album "Robin Williams - Live 2002" at the 45th Annual Grammy Awards, Sunday, Feb. 23, 2003, in New York. (AP Photo/Kathy Willens)
Robin Williams, left, and Christopher Reeve, attempt to hail a taxicab in New York City on Feb. 9, 1981. Williams went to see Reeve, who is appearing in the play "The Fifth of July", backstage after his performance Friday night. (AP Photo/Steve Sands)
Robin Williams reads to children inside the Scholastic Tent at the Tribeca Family Festival in New York Saturday May 8, 2004. (AP Photo/ Tina Fineberg)
Robin Williams, who provides voice work for the animated film "Happy Feet," races across Hollywood Blvd. after signing autographs at the premiere of the film at Grauman's Chinese Theatre in Los Angeles, Sunday, Nov. 12, 2006. (AP Photo/Chris Pizzello)
Ben Stiller, left, and Robin Williams attend the premiere of "License to Wed" Monday, June 25, 2007, in the Hollywood section of Los Angeles. (AP Photo/Phil McCarten)
Comedians Billy Crystal, right, and Robin Williams, center, in association with a project called Comic Relief, present a check for the homeless to Governor Michael S. Dukakis, May 28, 1988 at the State House in Boston. The check is the third in a series totaling over $200,000, given to Boston?s Health Care for the Homeless project. Comic Relief President Bob Zmuda, rear, helps with the presentation. (AP Photo/Susan Walsh)
Robin Williams appears onstage at The 2012 Comedy Awards in New York, Saturday, April 28, 2012. (AP Photo/Charles Sykes)
JIMMY KIMMEL LIVE - Emmy Award-nominated 'Jimmy Kimmel Live' airs every weeknight (11:35 p.m. - 12:41 a.m., ET), packed with hilarious comedy bits and features a diverse lineup of guests including celebrities, athletes, musicians, comedians and humorous human interest subjects. The guests for TUESDAY, NOVEMBER 12 included actor Robin Williams ('The Crazy Ones'), Sarah Hyland, Ariel Winter, Nolan Gould, Rico Rodriguez and Aubrey Anderson-Emmons ('Modern Family') and musical guest The Killers - also featuring Jimmy Kimmel Lives' 'Modern Family Feud: Kids Edition.' (Photo by Randy Holmes/ABC via Getty Images)
ROBIN WILLIAMS, JIMMY KIMMEL
LOS ANGELES - SEPTEMBER 5: 'Breakfast Burrito Club' -- Left to Right: Sydney (Sarah Michelle Gellar), Zach (James Wolk), Simon (Robin Williams) and Andrew (Hamish Linklater) delve into each other'Âs personal lives while brainstorming ideas for an ad campaign, on THE CRAZY ONES, Thurs. Oct. 17 (9:01 -Â 9:31 PM, ET/PT) on the CBS Television Network. (Photo by Richard Cartwright/CBS via Getty Images)
LOS ANGELES - SEPTEMBER 5: 'Breakfast Burrito Club' -- Simon (Robin Williams) brainstorms ideas for an ad campaign for the breakfast burrito, on THE CRAZY ONES, Thurs. Oct. 17 (9:01 9:31 PM, ET/PT) on the CBS Television Network. (Photo by Richard Cartwright/CBS via Getty Images)
THE TONIGHT SHOW WITH JAY LENO -- Episode 1515 -- Pictured: (l-r) Actor Robin Williams, host Jay Leno during an interview on December 22, 1998 -- (Photo by: Margaret Norton/NBC/NBCU Photo Bank via Getty Images)
Robin Williams, Zelda Williams and Cody Williams at the Mann's Chinese Theatre in Hollywood, California (Photo by Ron Galella, Ltd./WireImage)
HOLLYWOOD, : Academy Award-winning actor Robin Williams wears a clown nose as he places his hands in cement during his hand and footprint ceremony outside Mann's Chinese Theatre 22 December in Hollywood, California. Williams is currently starring in the critically acclaimed film 'Patch Adams' about a doctor who uses humor to help heal his patients. AFP PHOTO/Vince BUCCI (Photo credit should read Vince Bucci/AFP/Getty Images)
Arnold Schwarzenegger & Robin Williams during The 13th Annual Moving Picture Ball American Cinematheque Award Honoring Arnold Schwarzenegger at Beverly Hilton Hotel in Beverly Hills, California, United States. (Photo by SGranitz/WireImage)
BEVERLY HILLS, UNITED STATES: Academy Award winning actor Robin Williams signs autographs for fans as he arrives for the premiere of his new film, 'What Dreams May Come' 28 September in Beverly Hills, CA. The film, a romantic-fantasy based on the Richard Matheson novel, tells of one man's journey to other worlds to find the woman he loves. AFP PHOTO Vince BUCCI (Photo credit should read Vince Bucci/AFP/Getty Images)
Off to the Emmys with my beautiful wife, Susan.
LOS ANGELES, UNITED STATES: Oscar winners Robin Williams (L), Best Supporting Actor and Jack Nicholson (R), Best Actor pose for photographers 23 March at the 70th Annual Academy Awards at the Shrine Auditorium in Los Angeles. Williams won for his roll in 'Good Will Hunting' and Nicholson for 'As Good As It Gets.' (ELECTRONIC IMAGE) AFP PHOTO/Hector MATA (Photo credit should read HECTOR MATA/AFP/Getty Images)
Robin Williams is covered in paint in a scene from the film 'What Dreams May Come', 1998. (Photo by Polygram Filmed Entertainment/Getty Images)
Sarah Michelle Gellar and Robin Williams arrive at the CBS, CW and Showtime TCA party at The Event on Monday, July 29, 2013 in Beverly Hills, Calif. (Photo by Jordan Strauss/Invision/AP)
324574 35: Robin Williams stands with Matt Damon at the fourth annual Screen Actors Guild Awards ceremonies March 18, 1998 in Los Angeles, CA. Various actors and entertainers attended the ceremonies to honor the accomplishments of their fellow performers. (Photo by Russell Einhorn/Liaison)
FRIENDS -- 'The One with the Ultimate Fighting Champion' Episode 24 -- Pictured: (l-r) Billy Crystal as Tim, Robin Williams as Thomas, Jennifer Aniston as Rachel Green, Matthew Perry as Chandler Bing, Lisa Kudrow as Phoebe Buffay (Photo by Paul Drinkwater/NBC/NBCU Photo Bank via Getty Images)
Nathan Lane and Robin Williams standing in pajamas on the porch in a scene from the film 'The Birdcage', 1996. (Photo by United Artists/Getty Images)
Bonnie Hunt, Bradley Pierce, Kirsten Dunst and Robin Williams hold each other in a scene from the film 'Jumanji', 1995. (Photo by TriStar/Getty Images)
BEVERLY HILLS, CA - JANUARY 23: U.S. actor Robin Williams holds his Golden Globe after winning for best actor in a comedy for his role in 'Mrs. Doubtfire' 22 January 1994. The movie also won a Golden Globe for best comedy film. (Photo credit should read DAVID CRANE/AFP/Getty Images)
Robin Williams and Tim Robbins in a scene from the film 'Cadillac Man', 1990. (Photo by Orion Pictures/Getty Images)
UNITED STATES - MARCH 16: Robin Williams (Photo by The LIFE Picture Collection/Getty Images)
Exclusive - Robin Williams is seen in the Green Room, sponsored by Audi, at the 65th Primetime Emmy Awards at Nokia Theatre on Sunday Sept. 22, 2013, in Los Angeles. (Photo by Alexandra Wyman/Invision for The Hollywood Reporter)
Robin Williams performs at the 6th Annual Stand Up For Heroes benefit concert for injured service members and veterans on Thursday, Nov. 8, 2012 in New York. (Photo by Charles Sykes/Invision/AP)
From left, actors Robin Williams, Whoopi Goldberg and Billy Crystal arrive for The Face of Tisch Gala to benefit New York University's Tisch School of the Arts, Monday, Dec. 6, 2010 in New York. (AP Photo/Jason DeCrow)
Comedian Robin Williams speaks during the HBO panel for "Robin Williams: Weapons of Self-Destruction" at the Television Critics Association summer press tour in Pasadena, Calif. on Thursday, July 30, 2009. (AP Photo/Matt Sayles)
Getting ready for The Tonight Show with The Man, @jayleno. Jay got me my first paying stand-up job.
Sarah Michelle Gellar and Robin Williams arrive at the CBS, CW and Showtime TCA party at The Beverly Hilton on Monday, July 29, 2013 in Beverly Hills, Calif. (Photo by Jordan Strauss/Invision/AP)
** FILE ** In this April 6, 2008 file photo, Robin Williams, left, and Ryan Seacrest embrace on stage at the "Idol Gives Back" fundraising special of "American Idol" in Los Angeles. (AP Photo/Mark J. Terrill, file)
Robin Williams introduces the band Genesis during the VH1 Rock Honors convert at the Mandalay Bay hotel-casino in Las Vegas on Saturday, May 12, 2007. (AP Photo/Isaac Brekken)
UNITED STATES - MARCH 16: Robin Williams (Photo by The LIFE Picture Collection/Getty Images)
Robin Williams kisses Ellen Degeneres at the HBO party after the 62nd Annual Golden Globe Awards on Sunday, Jan. 16, 2005, in Beverly Hills, Calif. (AP Photo/Lisa Rose)
Comedians Richard Pryor, left, and Robin Williams share a laugh at the New York Friar's club in a Friday Sept. 27, 1991 photo. Richard Pryor, the caustic yet perceptive actor-comedian who lived dangerously close to the edge both on stage and off, died Saturday. He was 65. (AP Photo/Andrew Savulich, file)
This undated image provided by 20th Century Fox shows Ben Stiller, left, and Robin Williams in a scene from their movie "Night at the Museum." The film was the top box office draw during the New Year's weekend with $37.8 million, a 24 percent jump over its debut the previous week, according to studio estimates released Sunday, Dec. 31, 2006. (AP Photo/ 20th Century Fox/HO/Doane Gregory)
NEW YORK - SEPTEMBER 26: Robin Williams and Charlie Rose on CBS This Morning on Thursday, Sept. 26, 2013 on the CBS Television Network. (Photo by Heather Wines/CBS via Getty Images)
Robin Williams does a comedy monologue prior to making a presentation at the 68th Annual Academy Awards in Los Angeles, Monday, March 25, 1996. (AP Photo/Eric Draper)
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By RYAN GORMAN
Robin Williams' widow has disclosed the late superstar was suffering from Parkinson's disease when he took his own life earlier this week.
Susan Schneider's first public words after the sudden death of her 63-year-old actor husband came in a shocking Thursday statement, which confirmed he was still sober, but also made the previously unknown disclosure.
'Robin's sobriety was intact and he was brave as he struggled with his own battles of depression, anxiety, as well as early stages of Parkinson's disease, which he was not yet ready to share publicly.'
Schneider's words sent shockwaves around the world as people were stunned to learn of the possible motivation Williams may have had for hanging himself Monday. They were first reported by The Wrap's Jordan Zakarin.
"Robin spent so much of his life helping others," said Schneider. "Whether he was entertaining millions on stage, film or television, our troops on the frontlines or comforting a sick child – Robin wanted us to laugh and feel less afraid."
The grieving woman graciously thanked her husband's millions of fans for their "tremendous outpouring of affection and admiration.
"His greatest legacy, besides his three children, is the joy and happiness he offered to others, particularly those fighting personal battles."
The statement came only one day after Williams daughter Zelda quit Twitter after extreme harassment from thousands of people in the days following her father's suicide.
Though no one will ever know exactly what Williams was thinking when he ended his life, this statement offered perhaps a glimpse into his final days.
"It is our hope in the wake of Robin's tragic passing, that others will find the strength to seek the care and support they need to treat whatever battles they are facing so they may feel less afraid."