Olympian McKayla Maroney took to Twitter on Tuesday to mourn the death of her father. The former Purdue University quarterback died at just 59 years old.
McKayla shared a sweet photo of herself embracing her father by a pool. The 23-year-old former gymnast -- who won two medals at the 2012 London Summer Games -- sweetly smiles at the camera while wrapping her arms around her father's neck.
"Love u dad. I can't believe it's real. I don't want to. I'll miss you forever. Rest in peace," McKayla captioned the pic. "You were the most incredible dad.."
McKayla Maroney through the years
McKayla Maroney through the years
DALLAS, TX - MAY 14: Gymnast, McKayla Maroney, poses for a portrait during the 2012 Team USA Media Summit on May 14, 2012 in Dallas, Texas. (Photo by Ronald Martinez/Getty Images)
GOOD MORNING AMERICA - U.S. women's gymnastics 'Fierce Five' appear on 'Good Morning America,' 8/15/12, airing on the ABC Television Network. (photo by Fred Lee/ABC via Getty Images) JOSH ELLIOTT, JORDYN WIEBER, GABBY DOUGLAS, MCKAYLA MARONEY, KYLA ROSS, ALY RAISMAN
ST. LOUIS, MO - JUNE 8: McKayla Maroney competes on the balance beam during the Senior Women's competition on day two of the Visa Championships at Chaifetz Arena on June 8, 2012 in St. Louis, Missouri. (Photo by Dilip Vishwanat/Getty Images)
ST. LOUIS, MO - JUNE 8: McKayla Maroney gets ready to compete on the balance beam during the Senior Women's competition on day two of the Visa Championships at Chaifetz Arena on June 8, 2012 in St. Louis, Missouri. (Photo by Dilip Vishwanat/Getty Images)
The United States women's gymnastics team of (center podium, left to right) Jordyn Wieber, Gabrielle Douglas, McKayla Maroney, Alexandra Raisman and Kyla Ross listened to the National Anthem during victory ceremonies at North Greenwich Arena during the 2012 Summer Olympic Games in London, England, Tuesday, July 31, 2012. (David Eulitt/Kansas City Star/MCT via Getty Images)
NEW YORK, NY - AUGUST 14: Gymnast McKayla Maroney poses at The Empire State Building on August 14, 2012 in New York City. (Photo by Bennett Raglin/WireImage)
NEW YORK, NY - AUGUST 14: Jordyn Wieber, Aly Raisman, McKayla Maroney, Kyla Ross and Gabby Douglas of the 2012 U.S. Women's Gymnastics Olympic Gold Medal Team ring the closing bell at the New York Stock Exchange on August 14, 2012 in New York City. (Photo by Jason Kempin/Getty Images)
NEW YORK, NY - AUGUST 14: McKayla Maroney leaves the 'Late Show with David Letterman' at Ed Sullivan Theater on August 14, 2012 in New York City. (Photo by James Devaney/WireImage)
NEW YORK, NY - AUGUST 14: (L-R) Members of the Olympic gold medal-winning U.S. Women's Gymnastics team Aly Raisman, McKayla Maroney, Jordyn Wieber and Kyla Ross attend The Cinema Society with Circa and Alice & Olivia screening of 'Sparkle' After Party at the Soho Grand Hotel on August 14, 2012 in New York City. (Photo by Andrew H. Walker/Getty Images)
LOS ANGELES, CA - SEPTEMBER 03: 2012 US Women's Gymnastics Olympic Team members McKayla Maroney, Gabby Douglas and Kyla Ross pose with Tommy Lasorda (2nd from left) after throwing out the ceremonial first pitch at Dodger Stadium on September 3, 2012 in Los Angeles, California. (Photo by Mark Sullivan/WireImage)
LOS ANGELES, CA - SEPTEMBER 06: (L-R) McKayla Maroney, Jordyn Wieber, Kyla Ross, Gabby Douglas and Alexandra Raisman arrive at the 2012 MTV Video Music Awards at Staples Center on September 6, 2012 in Los Angeles, California. (Photo by Jeff Kravitz/FilmMagic)
WASHINGTON, DC - NOVEMBER 14:
Olympic gymnast gold and silver medalist McKayla Maroney makes an appearance to sign autographs Wednesday, November 14, 2012 in Washington, DC.
(Photo by Katherine Frey/The Washington Post via Getty Images)
NEW YORK, NY - NOVEMBER 22: Olympic gymnast McKayla Maroney attends the 86th Annual Macy's Thanksgiving Day Parade on November 22, 2012 in New York City. (Photo by Ray Tamarra/FilmMagic)
EAST RUTHERFORD, NJ - NOVEMBER 22: Gymnasts Jordyn Wieber and McKayla Maroney attend the New England Patriots vs. New York Jets game at MetLife Stadium on November 22, 2012 in East Rutherford, New Jersey. (Photo by Al Pereira/WireImage)
SANTA MONICA, CA - FEBRUARY 09: Aly Raisman, Nick Cannon and McKayla Maroney attend the Third Annual Hall of Game Awards hosted by Cartoon Network at Barker Hangar on February 9, 2013 in Santa Monica, California. (Photo by JB Lacroix/WireImage)
SANTA MONICA, CA - FEBRUARY 09: McKayla Maroney attends the Third Annual Hall of Game Awards hosted by Cartoon Network at Barker Hangar on February 9, 2013 in Santa Monica, California. (Photo by JB Lacroix/WireImage)
LOS ANGELES, CA - JULY 17: US gymnast McKayla Maroney arrives at the 2013 ESPY Awards at Nokia Theatre L.A. Live on July 17, 2013 in Los Angeles, California. (Photo by C Flanigan/FilmMagic)
McKayla Maroney, Long Beach, California, during the Senior Women Competition at The 2013 P&G Gymnastics Championships, USA Gymnastics' National Championships at the XL, Centre, Hartford, Connecticut, USA. 15th August 2013. Photo Tim Clayton (Photo by Tim Clayton/Corbis via Getty Images)
US McKayla Maroney competes on uneven bars at the 44th World Artistic Gymnastics Championships in Antwerp on October 2, 2013. AFP PHOTO / JOHN THYS (Photo credit should read JOHN THYS/AFP/Getty Images)
ANTWERPEN, BELGIUM - OCTOBER 05: McKayla Maroney of USA competes in the Vault Final on Day Six of the Artistic Gymnastics World Championships Belgium 2013 held at the Antwerp Sports Palace on October 5, 2013 in Antwerpen, Belgium. Jorge Luis Alvarez Pupo/LatinContent/Getty Images
HOLLYWOOD, CA - MARCH 27: Gymnast McKayla Maroney attends the GBK & Stop Attack Pre Kids Choice Gift Lounge held at The Redbury Hotel on March 27, 2015 in Hollywood, California. (Photo by Tommaso Boddi/Getty Images for GBK Productions)
GOOD MORNING AMERICA - Olympic Gymnasts Dominique Dawes and Mckayla Maroney are guests on 'Good Morning America,' 8/9/16, airing on the ABC Television Network.
(Photo by Heidi Gutman/ABC via Getty Images)
DOMINIQUE DAWES, MCKAYLA MARONEY
WEST HOLLYWOOD, CA - JULY 28: McKayla Maroney attends TigerBeat's Official Teen Choice Awards Pre-Party Sponsored by NYX Professional Makeup and Rock Your Hair at HYDE Sunset: Kitchen + Cocktails on July 28, 2016 in West Hollywood, California. (Photo by Jonathan Leibson/WireImage)
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The athlete's brother, Kav Maroney, also paid tribute to his father on social media.
"Dad you taught me everything from how to walk to how to be a man and for that I thank you," he captioned an Instagram pic. "Thank you for getting up at 4:30am for work and not coming home till 7 pm everyday for more then 20 years just to keep food on the table, and for us to have a great life. I'm the man of the house now and I promise to hold everything down. I promise."
"I love you and miss you i will live to make you proud till The day i get to see you again," Kav added. "I love you dad."