Question: What year did the film set designer of the 1987 gangster film directed by Brian De Palma die?

Context articles: Obsession (1976 film)
The Untouchables (film)
Snake Eyes (film)
Mission: Impossible (film)
Ralph A. Vaughn
R. Gilbert Clayton
De Palma (film)
The Wedding Party (1969 film)
Redacted (film)
William Finley (actor)

Obsession is a 1976 psychological thriller/mystery film directed by Brian De Palma, starring Cliff Robertson, Geneviève Bujold, John Lithgow, and Stocker Fontelieu.
 The screenplay was by Paul Schrader, from a story by De Palma and Schrader.
 Bernard Herrmann provided the film's soundtrack prior to his death in 1975.
 The story is about a New Orleans businessman who is haunted by guilt following the death of his wife and daughter during a kidnapping-rescue attempt.
 Years after the tragedy, he meets and falls in love with a young woman who is the exact look-alike of his long dead wife.
The Untouchables is a 1987 American gangster film directed by Brian De Palma, produced by Art Linson, written by David Mamet, and based on the book "The Untouchables" (1957).
 The film stars Kevin Costner, Charles Martin Smith, Andy Garcia, Robert De Niro, and Sean Connery.
 Ness forms the Untouchables team to bring Al Capone to justice during Prohibition.
 The Grammy Award-winning score was composed by Ennio Morricone and features some period-correct music by Duke Ellington.
Snake Eyes is a 1998 American conspiracy thriller film directed by Brian De Palma, featuring his trademark use of long tracking shots and split screens.
 It starred Nicolas Cage, Gary Sinise and Carla Gugino.
 The film was written by David Koepp and De Palma, and was released to theaters on August 7, 1998.
 It cost an estimated $73 million to produce and returned $103 million worldwide, but received mixed to negative reviews from critics.
Mission: Impossible is a 1996 American action spy film directed by Brian De Palma, produced by and starring Tom Cruise.
 Based on the , the plot follows Ethan Hunt (Cruise) and his mission to uncover the mole who has framed him for the murders of his entire Impossible Missions Force (IMF) team.
 Work on the script had begun early with filmmaker Sydney Pollack on board, before De Palma, Steven Zaillian, David Koepp, and Robert Towne were brought in.
 "Mission: Impossible" went into pre-production without a shooting script.
 De Palma came up with some action sequences, but Koepp and Towne were dissatisfied with the story that led up to those events.
Ralph A. Vaughn (1907-2000) was an African-American academic, architect and film set designer.
 Born in Washington, D.C., he was an Assistant Professor at Howard University before moving to Los Angeles, California, where he designed many buildings, houses and a synagogue.
 He was also a film set designer.
 He was one of the first African-American architects in Los Angeles.
R. Gilbert Clayton (October 15, 1922 – January 31, 2013) was an American film set designer and actor whose credits include "Batman & Robin", "Armageddon" and "The Untouchables".
De Palma is a 2015 American documentary film directed by Noah Baumbach and Jake Paltrow about the director and screenwriter Brian De Palma.
 It world premiered, out of competition, at the 72nd edition of the Venice Film Festival.
The Wedding Party is a 1969 American film farce created as a joint effort by Sarah Lawrence theatre professor Wilford Leach and two of his students, protégé Brian De Palma and Cynthia Monroe, who bankrolled the project.
 Leach went on to a successful career as a Tony Award-winning theatre director, while De Palma continued as an auteur of films frequently emulating the themes and techniques of Alfred Hitchcock.
Redacted is a 2007 American war film written and directed by Brian De Palma.
 It is a fictional dramatization, loosely based on the 2006 Mahmudiyah killings in Mahmoudiyah, Iraq, when U.S. Army soldiers raped an Iraqi girl and murdered her along with her family.
 This film, which is a companion to an earlier film by De Palma, 1989's "Casualties of War", was shot in Jordan.
William Finley (September 20, 1940 – April 14, 2012) was an American actor who has appeared in the films "Simon", "Silent Rage", "Phantom of the Paradise", "Sisters", and "The Wedding Party".
 He had a long-running friendship and collaboration with director Brian De Palma, beginning with the student films "Woton's Wake" (1962) and "Murder à la Mod" (1968).
 He also acted in De Palma's 2006 release "The Black Dahlia".
 Under the name W. Franklin Finley, he wrote the screenplay for the 1983 film "The First Time".
 He was also the co-author of the 1985 book "Racewalking".