Question: Where did McQuarrie get the name Keyser Soze?
About the article "The Usual Suspects", section "Origins".

Candidate passages:
 Albert McQuarrie, (born 1918), British, politician.
Christopher McQuarrie, (born 1968), American, screenwriter and director.
Ralph McQuarrie, (1929–2012) American, conceptual designer and futurist.
Stuart McQuarrie, (born 1963), actor.
William Garland McQuarrie, (1876–1943), Canadian, lawyer and politician.  
Christopher McQuarrie was nominated for the Best Original Screenplay and Kevin Spacey was nominated for Best Supporting Actor at the Academy Awards.
They both won, and in his acceptance speech Spacey memorably said, "Well, whoever Keyser Söze is, I can tell you he's gonna get gloriously drunk tonight.
"McQuarrie also won the Best Original Screenplay award at the 1996 British Academy Film Awards.
The film was also nominated for Best Film, and best editing.
It won for best editing.
The film was nominated for three Independent Spirit Awards — Best Supporting Actor for Benicio del Toro, Best Screenplay for Christopher McQuarrie and Best Cinematography for Newton Thomas Sigel.
Both Del Toro and McQuarrie won in their categories.
"The Usual Suspects" was screened at the 1995 Seattle International Film Festival, where Bryan Singer was awarded Best Director and Kevin Spacey won for Best Actor.
The Boston Society of Film Critics gave Spacey the Best Supporting Actor award for his work on the film.
Spacey went on to win this award with the New York Film Critics Circle and the National Board of Review, which also gave the cast an ensemble acting award. 
Bryan Singer met Kevin Spacey at a party after a screening of the young filmmaker's first film, "Public Access", at the 1993 Sundance Film Festival.
Spacey had been encouraged by a number of people he knew who had seen it, and was so impressed that he told Singer and McQuarrie that he wanted to be in whatever film they did next.
Singer read a column in "Spy" magazine called "The Usual Suspects" after Claude Rains' line in "Casablanca."
Singer thought that it would be a good title for a film.
When asked by a reporter at Sundance what their next film was about, McQuarrie replied, "I guess it's about a bunch of criminals who meet in a police line-up," which incidentally was the first visual idea that he and Singer had for the poster: "five guys who meet in a line-up," Singer remembers.
The director also envisioned a tagline for the poster, "All of you can go to Hell."
Singer then asked the question, "What would possibly bring these five felons together in one line-up?"
McQuarrie revamped an idea from one of his own unpublished screenplays — the story of a man who murders his own family and walks away, disappearing from view.
The writer mixed this with the idea of a team of criminals.Söze's character is based on the accounts of John List, a New Jersey accountant who murdered his family in 1971 and then disappeared for almost two decades, assuming a new identity before he was ultimately apprehended.
McQuarrie based the name of Keyser Söze on one of his previous supervisors, Keyser Sume, at a Los Angeles law firm that he worked for, but decided to change the last name because he thought that his former boss would object to how it was used.
He found the word "söze" in his roommate's English-to-Turkish dictionary, which translates as "talk too much."
All the characters' names are taken from staff members of the law firm at the time of his employment.
McQuarrie had also worked for a detective agency, and this influenced the depiction of criminals and law enforcement officials in the script.
Singer described the film as "Double Indemnity" meets "Rashomon," and said that it was made "so you can go back and see all sorts of things you didn't realize were there the first time.
You can get it a second time in a way you never could have the first time around."
He also compared the film's structure to "Citizen Kane" (which also contained an interrogator and a subject who is telling a story) and the criminal caper "The Anderson Tapes."
During the editing phase Singer thought that they had completed the film two weeks early, but woke up one morning and realized that they needed that time to put together a sequence that convinced the audience that Dean Keaton was Söze — and then do the same for Verbal Kint because the film did not have "the punch that Chris had written so beautifully."
According to Ottman, he assembled the footage as a montage but it still did not work until he added an overlapping voiceover montage featuring key dialogue from several characters and have it relate to the images.
Early on, executives at Gramercy had problems pronouncing the name Keyser Söze and were worried that audiences would have the same problem.
The studio decided to promote the character's name.
Two weeks before the film debuted in theaters, "Who is Keyser Söze?"
posters appeared at bus stops, and TV spots told people how to say the character's name.
Despite these efforts, all the actors in the film consistently mispronounce his name as "Soze" instead of "Söze".
Singer wanted the music for the boat heist to resemble Pyotr Ilyich Tchaikovsky's Piano Concerto No.
1.
The ending's music was based on a k.d.
lang song. 
Director Bryan Singer and writer Christopher McQuarrie originally conceived of "The Usual Suspects" as five felons meeting in a police line-up.
Eventually, a powerful underworld figure responsible for their meeting was added to the plot.
McQuarrie combined this plot with another idea of his based on the true story of John List, who murdered his family and started a new life.
The name was based on one of McQuarrie's supervisors, though the last name was changed.
McQuarrie settled on Söze after finding it in a Turkish dictionary; it means "to talk too much".