Question: Sylvia Raphael Schjødt, was a South African-born Israeli Mossad agent, convicted of murder in Norway for her involvement in the Lillehammer affair, was the killing by Mossad agents of Ahmed Bouchiki, a Moroccan waiter and brother of the renowned musician Chico Bouchikhi, in Lillehammer, Norway on which date?

Context paragraphs:
Zvi Aharoni: Zvi Aharoni (Hebrew: צבי אהרוני‎ ; February 6, 1921 – May 26, 2012) was an Israeli Mossad agent instrumental in the capture of Adolf Eichmann.

Chico &amp; the Gypsies: Chico & the Gypsies is a French musical formation of rumba catalana, flamenco and Latin pop and rock tunes led by Chico Bouchikhi, who was one of the founders of the Gipsy Kings.  After he left the Gipsy Kings due to differences with the band, Bouchikhi formed Chico and the Gypsies in 1992.

Bodlim: A bodel (plural bodlim) is usually a young Israeli, often a student, engaged as a gofer by the Mossad after a thorough check and confirmation of his Jewish parentage and background.  His job is to run errands and perform chores for the Mossad agents when required.  He is prohibited from asking any questions and is only given any necessary information on a need to know basis.  In return, he is allowed to live without paying any rent in a Mossad safehouse.  The "bodel" is not allowed to bring friends into the safehouse, and when visiting agents move in, he has to move out.  However, he can be retained to do the shopping, cleaning and laundry.

Michael Harari: Michael Harari (February 18, 1927 – September 21, 2014) was an Israeli intelligence officer in the Mossad.  He was involved in several notable operations, including the failed Lillehammer affair and the rescue of hostages at Entebbe.

Gamliel Cohen: Gamliel Cohen (Hebrew: גמליאל כהן‎ ‎ ; April 10, 1922 – July 15, 2002) was "one of the fathers of Israeli espionage".  Much of his life was spent living under various false identities in Europe, Africa, and the Middle East.  A deep-cover Mossad agent, he infiltrated neo-Nazi groups as well as governments that were hostile to Israel.  Cohen wrote a book about the undercover unit he helped to create inside the Palmach, which was posthumously published by the Israeli Ministry of Defense and Galili Center for Defense Studies.  Nearly all of Cohen's work at Mossad remains classified today, and his very existence was only publicly acknowledged after his death.

Lillehammer affair: The Lillehammer affair was the killing by Mossad agents of Ahmed Bouchiki, a Moroccan waiter and brother of the renowned musician Chico Bouchikhi, in Lillehammer, Norway on July 21, 1973.  The Israeli agents had mistaken their target for Ali Hassan Salameh, the chief of operations for Black September.  Six of the Mossad team of fifteen were captured and convicted of complicity in the killing by the Norwegian justice system, in a major blow to the intelligence agency's reputation.

Cheryl Bentov: Cheryl Ben Tov (Hebrew: שריל בנטוב), born Cheryl Hanin in 1960, is an American real estate agent and former Israeli Mossad agent who became well known in 1986 when, under the name "Cindy", she persuaded former Israeli nuclear technician Mordechai Vanunu to go with her to Rome, where he was kidnapped and transported to Israel.  Vanunu faced a secret trial and was sentenced to 18 years in prison, spending nearly 12 of them in solitary confinement.  Vanunu publicly released confidential information on Israel's nuclear reactor and stated that Israel had created nuclear weapons, becoming the sixth nuclear power and the first since the 1968 Treaty on the Non-Proliferation of Nuclear Weapons, of which Israel was not a signatory.

Sylvia Raphael: Sylvia Raphael Schjødt (born 1 April 1937 — 9 February 2005) was a South African-born Israeli Mossad agent, convicted of murder in Norway for her involvement in the Lillehammer affair.

Alan Hart (writer): Alan Hart is an author, former Middle East Chief Correspondent for Independent Television News, and former BBC Panorama presenter specialising in the Middle East.  He has authored the three-part series "Zionism: The Real Enemy of the Jews".  Hart believes that the destruction of the World Trade Center was carried out by planes that had been fitted with transponders and that Israeli Mossad agents guided them into the towers.

Venues of the 1994 Winter Olympics: The 1994 Winter Olympics were held in and around Lillehammer, Norway, from 12 to 27 February 1994.  Ten competition and fourteen non-competition venues were used, most of which were subsequently used for the 1994 Winter Paralympics.  The Games were spread out over ten venues in five municipalities in two counties, Oppland and Hedmark.  Lillehammer, with approximately 25,000 inhabitants, and Hamar and Gjøvik, both with approximately 27,000 inhabitants, are all situated on the lake Mjøsa.  Gjøvik and Hamar are 45 and south of Lillehammer, respectively.  Hunderfossen is 15 km north of Lillehammer, but located within the municipality.  Øyer and Ringebu, each with just under 5,000 inhabitants, are 18 and north of Lillehammer, respectively, in the valley Gudbrandsdalen.  Lillehammer had four competition venues, Hamar had two competition venues, while Hunderfossen, Gjøvik, Øyer and Ringebu had one competition venue each.

Supporting paragraphs: Sylvia Raphael Lillehammer affair
Answer: July 21, 1973