Question: What paranormal investigator's work inspired the only Orion Pictures film filmed in 3-D?

Context articles: Amityville 3-D
RoboCop: Alpha Commando
Max 2: White House Hero
Orion Pictures
Nick Groff
One Man's Hero
Deadly Possessions
The Casebook of Eddie Brewer
Stephen Kaplan
The Addams Family (film)

Amityville 3-D (also known as Amityville III: The Demon) is a 1983 American supernatural horror film and the third film based on the Amityville horror.
 It was one of a spate of 3-D films released in the early 1980s.
 The film was directed by Richard Fleischer and the script was written by David Ambrose (under the pseudonym William Wales).
 It was the only Orion Pictures film filmed in 3-D.
RoboCop: Alpha Commando is an animated series based on the Orion Pictures film "RoboCop" and the series/films that followed.
 It is the second animated version of the character, following on from "".
 The series premiered in first-run syndication on September 7, 1998, and ran until February 3, 1999.
 It was syndicated by The Summit Media Group.
 As of July 1st, 2017, it has been airing on Sinclair's KidsClick programming block.
Max 2: White House Hero is a 2017 American adventure drama film, produced by Warner Bros. and Sunswept Entertainment.
 The film was released on May 5, 2017 by Orion Pictures and Warner Bros.
 Pictures.
 It is the first Orion Pictures film to be distributed by Warner Bros. since "Zelig" (1983).
 It is a sequel to the 2015 film, "Max".
 The movie was filmed on location in and around Vancouver, British Columbia.
 Principal photography on the film began in June 2016 and wrapped on July 13, 2016.
Orion Pictures Corporation is an American motion picture producer and distributor that produced and released films from 1978 until 1999, and was also involved in television production and syndication throughout the 1980s until the early 1990s.
 It was formed in 1978 as a joint venture between Warner Bros. and three former top-level executives of United Artists.
 Although it was never a large motion picture producer, Orion achieved a comparatively high reputation for Hollywood quality.
 Woody Allen, James Cameron, Jonathan Demme, Oliver Stone, and several other prominent directors worked with Orion during its most successful years from 1978 to 1992.
 Of the films distributed by Orion, four won Academy Awards for Best Picture: "Amadeus" (1984), "Platoon" (1986), "Dances with Wolves" (1990), and "The Silence of the Lambs" (1991).
 Two other Orion films, "Hannah and Her Sisters" (1986) and "Mississippi Burning" (1988), were nominated for that same category.
 In 2013, Metro-Goldwyn-Mayer revived the Orion name for television; a year later, Orion Pictures was relaunched by the studio.
Nick Groff (born April 19, 1980) is an American paranormal investigator, musician, and television personality.
 Groff is currently the lead investigator for the television series "Paranormal Lockdown" and the "Ghosts of Shepherdstown".
 He was a co-investigator and executive producer of "Ghost Adventures", as well as an editor and cameraman for the show from seasons 1-10.
 Groff was an executive producer for a show on the Travel Channel called "Vegas Stripped", a behind-the-scenes look at the operations of the South Point Hotel, Casino & Spa in Las Vegas, Nevada.
One Man's Hero is a 1999 historical war drama film directed by Lance Hool and starring Tom Berenger, Joaquim de Almeida and Daniela Romo.
 The film has the distinction of being the last film released by Orion Pictures' arthouse division Orion Classics, as well as being the last Orion Pictures film, until 2013, when Metro-Goldwyn-Mayer revived the Orion Pictures brand to release the remake of the 1976 film "The Town That Dreaded Sundown".
Deadly Possessions is an American television series about the paranormal that premiered on April 2, 2016, on the Travel Channel.
 Produced by MY Entertainment (formerly MY Tupelo Entertainment), the series features paranormal investigator Zak Bagans of "Ghost Adventures" as he showcases his haunted artifacts in his new museum in Las Vegas, Nevada.
 He shares stories of the items dark history, which he mostly receives from people all over the world, or during his investigations and lockdowns.
The Casebook of Eddie Brewer is a 2012 paranormal mystery thriller film written and directed by Andrew Spencer.
 It stars Ian Brooker as paranormal investigator, Eddie Brewer, and features actors Peter Wight, Erin Connolly, Louise Paris, Glen Hill, Natalie Wilson, Bella Hamblin, Rob Stanley, Alison Belbin, and Sean Connolly.
 The film was shot in and around Birmingham in 2010-11.
 The music score was composed by Jamie Robertson.
Stephen Kaplan (September 19, 1940 – June 9, 1995) was a noted paranormal investigator, vampirologist, and founder/director of the Vampire Research Center and the Parapsychology Institute of America, both of which were founded in Suffolk County, New York and subsequently relocated to Elmhurst, Queens.
 He was a popular author and radio commentator, best known for his vocal skepticism of the alleged Amityville Horror hauntings.
 Kaplan lived in Suffolk County, New York and worked for the New York City Board of Education.
 His overview of the Amityville Horror became the basis for the film Amityville 3-D that chronicles his attempt to prove the story was a hoax.
The Addams Family is a 1991 American fantasy comedy film based on the characters from the cartoon of the same name created by cartoonist Charles Addams.
 The film was originally developed at Orion Pictures (which, at the time, owned the rights to the television series on which the film was based).
 But due to the studio's financial problems, Paramount Pictures stepped in to complete the film and handled North American distribution; Orion retained the international rights, though these rights now belong to Metro-Goldwyn-Mayer through their purchase of Orion.