Question: Who directed the "Saw" film that Gregg Hoffman was working on when he died?

Context articles: Colin Gregg
Saw III
Twisted Pictures
The Sad Horse
Good Boy!
Garfield Gets Real
Gregg Hoffman
The Hunger Games: Mockingjay – Part 2
List of Saw cast members
State and Main

Colin Gregg (born 10 January 1947) is a British film and television director, editor and photographer.
 His work includes the films "To the Lighthouse" (1983), "Lamb" (1985), and "We Think the World of You" (1988).
 He has also directed episodes of television series including "Kavanagh QC" and "Inspector Morse", both starring John Thaw, and the BBC's "Screen Two".
 In addition, Gregg has directed adverts, including the award winning commercial for the British drink Blackcurrant Tango.
Saw III is a 2006 American horror film directed by Darren Lynn Bousman from a screenplay by Leigh Whannell and story by James Wan and Whannell.
 It is the third installment in the "Saw" franchise and stars Tobin Bell, Shawnee Smith, Angus Macfadyen, Bahar Soomekh, and Dina Meyer.
 "Saw III" marks the first appearances of Costas Mandylor and Betsy Russell, albeit minor roles; they would later become major characters in the series.
Twisted Pictures is an American independent production company, mainly creating horror and thriller films.
 The company was founded in 2004 by Evolution Entertainment's Mark Burg, Oren Koules and Gregg Hoffman.
 They are known for producing the "Saw" franchise.
The Sad Horse is a 1959 American drama film directed by James B. Clark, written by Charles Hoffman, and starring David Ladd, Chill Wills, Rex Reason, Patrice Wymore, Gregg Palmer and Eve Brent.
 It was released in March 1959, by 20th Century Fox.
Good Boy!
 is a 2003 comedy film directed by John Robert Hoffman.
 The film stars Liam Aiken as Owen Baker, as well as the voices of Matthew Broderick, Delta Burke, Donald Faison, Brittany Murphy, Carl Reiner, Vanessa Redgrave, and Cheech Marin as the abundant dog characters in the movie.
 The film was based on the book "Dogs from Outer Space" by Zeke Richardson.
 John Hoffman and Richardson collaborated on the screen story, while Hoffman wrote the screenplay.
Garfield Gets Real (also known as Garfield 3D in some regions) is a 2007 American CGI movie starring Garfield.
 It was produced by Paws, Inc. in cooperation with Davis Entertainment, and The Animation Picture Company and distributed by 20th Century Fox Home Entertainment.
 It was written by Garfield's creator Jim Davis, who started working on the script in the fall of 1996.
 This was the first fully animated Garfield film since the last "Garfield and Friends" TV episode aired in 1995, and the first to be written by Davis since the 1991 television special "Garfield Gets a Life".
 The movie was released in theaters August 9, 2007, and the DVD was shipped to stores on November 20, 2007.
 Gregg Berger, an actor from the original series, reprises his role of Odie, but Garfield is now voiced by veteran voice actor Frank Welker, since the original actor Lorenzo Music died in 2001 and Jon is voiced by Wally Wingert, as Thom Huge retired that same year.
 The film's success led to two sequels: "Garfield's Fun Fest" (2008) and "Garfield's Pet Force" (2009).
Gregg Hoffman (June 11, 1963 – December 4, 2005), born in Phoenix, Arizona, was a film producer responsible for developing "Saw" and "Saw II".
 He studied communications, law and economics at American University in Washington, D.C.
 Hoffman was working on "Saw III" and other films for Twisted Pictures when he died in a hospital in Hollywood, California of natural causes.
 He was 42 years old at his death.
 The movie "Dead Silence" (2007) was dedicated to him.
 He was also thanked in the movie "Gross misconduct", mentioned as dedicatee for "Saw III", and posthumously credited with producing the "Saw" films from 2007 through 2017.
The Hunger Games: Mockingjay – Part 2 is a 2015 American dystopian science fiction adventure film directed by Francis Lawrence, with a screenplay by Peter Craig and Danny Strong.
 It is the fourth and final installment in "The Hunger Games" film series, and the second of two films based on the novel "Mockingjay", the final book in "The Hunger Games" trilogy, by Suzanne Collins.
 Produced by Nina Jacobson and Jon Kilik, and distributed by Lionsgate, the film features an ensemble cast that includes Jennifer Lawrence, Josh Hutcherson, Liam Hemsworth, Woody Harrelson, Elizabeth Banks, Julianne Moore, Philip Seymour Hoffman, and Donald Sutherland.
 Hoffman died in February 2014, making "Mockingjay – Part 2" his final film role.
 Principal photography on both parts of the film began on September 23, 2013 in Atlanta, before moving to Paris for two weeks of back-to-back filming and officially concluding on June 20, 2014, in Berlin and at Babelsberg Studios, Germany.
The list of "Saw" cast members is a list of actors who voiced or portrayed characters appearing in the "Saw" franchise created by James Wan and Leigh Whannell.
 The only actors to appear in all seven films are Tobin Bell (Jigsaw), who is also the only actor to film scenes for every film in the series, and Shawnee Smith (Amanda Young), who appears via archive footage in the three films she does not feature in prominently.
 Complementing them on screen are actors ranging from renowned status such as Danny Glover, Cary Elwes, and Donnie Wahlberg to lesser-known actors such as Dina Meyer and Lyriq Bent, among others.
 While many actors reprise their roles for cameos and minor appearances, the only actors besides Bell and Smith to appear with major roles in more than three films were Costas Mandylor (Mark Hoffman) and Betsy Russell (Jill Tuck), both of whom appear in the latter five instalments of the series.
State and Main is a 2000 comedy film written and directed by David Mamet.
 It stars William H. Macy, Sarah Jessica Parker, Alec Baldwin, Julia Stiles, Philip Seymour Hoffman, Rebecca Pidgeon, David Paymer, Patti LuPone, Clark Gregg, and Charles Durning.