Question: Who was the seven-time World and Olympic medalist killed by John Eleuthere du Pont in January 1996?

Context paragraphs:
Dupont Circle Fountain: The Dupont Circle Fountain, formally known as the Rear Admiral Samuel Francis Dupont Memorial Fountain, is a fountain located in the center of Dupont Circle in Washington, D.C. It honors Rear Admiral Samuel Francis Du Pont, a prominent American naval officer and member of the Du Pont family.  The fountain replaced a statue of Du Pont that was installed in 1884.  Designed by Henry Bacon and sculpted by Daniel Chester French, the fountain was dedicated in 1921.  Prominent guests at the dedication ceremony included First Lady Florence Harding, Secretary of War John W. Weeks and Secretary of the Navy Edwin Denby.

E. Paul du Pont: Eleuthere Paul du Pont (April 24, 1887 – September 26, 1950) was an American industrialist, and the son of Francis Gurney du Pont.  He founded Du Pont Motors, a manufacturer of automobiles and marine engines, and later bought and became President of Indian Motorcycles.  He was inducted into the Motorcycle Hall of Fame in 2004.

Lammot du Pont Copeland: Lammot du Pont Copeland (May 19, 1905 at Christiana Hundred, Delaware – July 1, 1983 at Mt. Cuba Center, Greenville, Delaware) son of Charles Copeland (March 30, 1867 in Englewood, New Jersey – February 3, 1944) and Louisa d'Andelot du Pont (January 25, 1868 in New Castle County, Delaware – August 10, 1926).  They were married February 16, 1904 at St. Amour in Wilmington, Delaware.  He was the great-great-grandson of DuPont-founder Eleuthère Irénée du Pont, and the company’s 11th president from 1962 to 1967.  He married Pamela Cunningham (May 5, 1906 – January 25, 2001) on February 1, 1930 at Litchfield, Connecticut.  She was the daughter of Mr. & Mrs. Seymour Cunningham of Litchfield.  Lammot and Pamela had three children: Bouchaine Vineyards winery owner Gerret van Sweringen Copeland, Lammot du Pont Copeland, Jr., and daughter Louisa du Pont Copeland, who married James Biddle.

Delaware Museum of Natural History: The Delaware Museum of Natural History was founded in 1957 by John Eleuthere du Pont near Greenville, Delaware; it opened in 1972 on a site near Winterthur, Delaware.  It is known for its extensive collections of seashells, birds, and bird eggs.  The latter is the second largest collection in North America.  It is the oldest natural history museum in Delaware.

Dave Schultz (wrestling): David Leslie "Dave" Schultz (June 6, 1959 – January 26, 1996) was an American Olympic and world champion freestyle wrestler, a seven-time World and Olympic medalist.  He coached individuals and teams at the college level and also privately.  He was shot and killed by John Eleuthère du Pont, a millionaire philanthropist who sponsored the private Foxcatcher wrestling team at an amateur sports center, known as Foxcatcher Farm, he set up on his estate in Pennsylvania.

Foxcatcher: Foxcatcher is a 2014 American true crime sports drama film produced and directed by Bennett Miller.  Written by E. Max Frye and Dan Futterman, the film stars Steve Carell, Channing Tatum, and Mark Ruffalo.  The film's plot is loosely based on the events surrounding multimillionaire Du Pont family heir and wrestling enthusiast John du Pont's 1986 recruitment of 1984 U.S. Olympic gold medalist brothers Mark (Freestyle Wrestling - 82 kg) and Dave Schultz (Freestyle Wrestling - 74 kg) to help coach U.S. wrestlers for participation in national, world, and Olympic competition, and the subsequent murder of Dave by John du Pont in January 1996.  Although the film's action is largely set at Foxcatcher Farm, du Pont's now-broken-up 800-acre suburban Philadelphia estate, the majority of the movie was filmed in the Pittsburgh metropolitan area.

John du Pont: John Eleuthère du Pont (November 22, 1938 – December 9, 2010) was an American philanthropist and heir to the Du Pont family fortune, he had been a published ornithologist, philatelist, philanthropist, conchologist, sports enthusiast, self-styled wrestling coach.  He died in prison while serving a sentence of 30 years in prison for the murder of Dave Schultz.

Charles I. du Pont: Charles Irénée du Pont (March 29, 1797 – January 31, 1869) was an American manufacturer and politician, and an early member of the prominent du Pont family business.  He was a nephew of Eleuthère Irénée du Pont, the founder of the E. I. du Pont de Nemours and Company, and a member of the Delaware General Assembly.

Victor Marie du Pont: Victor Marie du Pont de Nemours (October 1, 1767 – January 30, 1827) was a French American diplomat, politician and businessman.  He was a member of the Delaware General Assembly, the founder of the Du Pont, Bauduy & Co., wool manufacturers, and brother of Éleuthère Irénée du Pont, the founder of the E.I. du Pont de Nemours Company.

Du Pont Motors: Du Pont Motors was founded by E. Paul du Pont to produce marine engines for the Allied nations in World War I.  After the war, the Du Pont Motor Company produced extremely high-end automobiles.  The cars were manufactured in Wilmington, Delaware.

Supporting paragraphs: John du Pont Dave Schultz (wrestling)
Answer: David Leslie "Dave" Schultz