user: You are a structured reasoning expert tasked with solving problems step by step. 
You first think about the reasoning process in the mind and then provide the answer. The reasoning process and answer should be enclosed within <think> </think> and <answer> </answer> tags, respectively, i.e., <think> reasoning process here </think> <answer> answer here </answer>. 
Given a question and the associated knowledge graph triplets (entity, relation, entity), you are asked to answer the question with these triplets and your own knowledge. 
You can break down the original question into several sub-questions and explore the given knowledge graph to solve them step-by-step. If there are multiple possible answers, choose one as the final answer. 
After thinking, when you finally reach a conclusion, clearly state the answer within <answer> </answer> tags, i.e., <answer> answer here </answer>. 
Question: who shot and killed president john f kennedy? 
Knowledge Triplets: The JFK assassination, book.written_work.subjects, United States of America
John F. Kennedy, film.film_subject.films, JFK
An Unfinished Life: John F. Kennedy, 1917–1963, book.written_work.subjects, John F. Kennedy
John F. Kennedy, book.book_subject.works, Years of Discord
John F. Kennedy, base.kwebbase.kwtopic.connections_to, fidel castro defeated invasion by john fitzgerald kennedy
The JFK assassination, common.topic.notable_types, Book
John F. Kennedy, media_common.dedicatee.dedications, m.04szj3z
John F. Kennedy, people.person.sibling_s, m.03lfptc
John F. Kennedy, common.topic.webpage, m.0b46nf9
John F. Kennedy, base.kwebbase.kwtopic.has_sentences, On November 22, 1963, Kennedy was assassinated as he and his wife drove through Dallas, Texas.
john fitzgerald kennedy attacked fidel castro, base.kwebbase.kwconnection.other, Fidel Castro
The killing of a president : the complete photographic record of the JFK Assassination, the conspiracy and the cover-up, book.book.editions, The killing of a president : the complete photographic record of the JFK Assassination, the conspiracy and the cover-up
lyndon baines johnson vice president to john fitzgerald kennedy, base.kwebbase.kwconnection.other, John F. Kennedy
John F. Kennedy, people.person.sibling_s, m.03lfqsd
Assassination of John F. Kennedy, book.book_subject.works, Gemstone File
John F. Kennedy, base.kwebbase.kwtopic.has_sentences, In Vienna, in June, 1961, Kennedy had an unproductive meeting with Soviet Prime Minister Krushchev.
An Unfinished Life: John F. Kennedy, 1917–1963, book.written_work.author, Robert Dallek
\t John F. Kennedy, common.topic.article, m.0gd42j_
Assassination of John F. Kennedy, book.book_subject.works, Plausible Denial
nikita sergeyevich khrushchev met john fitzgerald kennedy, base.kwebbase.kwconnection.subject, Nikita Khrushchev
Assassination of John F. Kennedy, book.book_subject.works, The killing of a president : the complete photographic record of the JFK Assassination, the conspiracy and the cover-up
An Unfinished Life: John F. Kennedy, 1917–1963, book.written_work.subjects, United States of America
John F. Kennedy, people.person.place_of_birth, Brookline
John F. Kennedy, book.author.works_written, As we remember Joe
The circumstances of Kennedy's death led to a multitude of theories about who was responsible for his death., base.kwebbase.kwsentence.previous_sentence, Two days later, Oswald was shot and killed while in police custody by Jack Ruby, a nightclub owner.
John F. Kennedy Jr., people.person.education, m.02wp8yh
Assassination of John F. Kennedy, book.book_subject.works, Rush to Judgment
m.09y6s4p, common.webpage.topic, John F. Kennedy
m.0b48tfl, common.webpage.topic, John F. Kennedy
John F. Kennedy, base.kwebbase.kwconnection.other, lee harvey oswald allegedly assassinated john fitzgerald kennedy
John F. Kennedy, people.deceased_person.place_of_burial, Arlington National Cemetery
John F. Kennedy, people.person.children, Caroline Kennedy
Assassination of John F. Kennedy, book.book_subject.works, Camelot and the Cultural Revolution: How the Assassination of John F. Kennedy Shattered American Liberalism
John F. Kennedy, common.topic.webpage, m.0b6rdfq
John F. Kennedy Jr., people.person.education, m.04hd96k
m.0yl7g7g, film.personal_film_appearance.film, Frame 313: The JFK Assassination Theories
Male, people.person.gender, Lee Harvey Oswald
Assassination of John F. Kennedy, book.book_subject.works, The JFK assassination
The JFK assassination, book.written_work.subjects, John F. Kennedy
Lee Harvey Oswald, base.kwebbase.kwtopic.connections_from, lee harvey oswald allegedly assassinated john fitzgerald kennedy
Zapruder film, base.newsevents.footage.videotaped_event, Assassination of John F. Kennedy
The killing of a president : the complete photographic record of the JFK Assassination, the conspiracy and the cover-up, common.topic.notable_for, g.125556p73
John F. Kennedy Jr., people.person.place_of_birth, Washington, D.C.
Assassination of John F. Kennedy, film.film_subject.films, Zapruder film
John F. Kennedy, common.topic.article, m.0d3k1g
John F. Kennedy, symbols.name_source.namesakes, Assassination of John F. Kennedy
Assassination of John F. Kennedy, book.book_subject.works, Oswald's Tale
John F. Kennedy, book.author.works_written, JFK wants to know
John F. Kennedy, book.book_subject.works, JFK in Ireland
m.03pq3l5, people.place_lived.person, John F. Kennedy Jr.
John F. Kennedy, media_common.dedicatee.dedications, m.052kjl4
Text and Meaning in Robert Frost's \"Dedication: For John F. Kennedy\", common.topic.subjects, Assassination of John F. Kennedy
John F. Kennedy, book.book_subject.works, One Hell of a Gamble: Khrushchev, Castro, and Kennedy, 1958-1964 - The Secret History of the Cuban Missile Crisis
An Unfinished Life: John F. Kennedy, 1917–1963, book.book.genre, Biography
John F. Kennedy, people.person.education, m.0s94p0_
Assassination of John F. Kennedy, book.book_subject.works, The Kennedy Assassination Tapes
John F. Kennedy, people.person.sibling_s, m.03lfpfx
m.09y460p, common.webpage.topic, John F. Kennedy
John F. Kennedy, people.person.education, m.0125s3s2
The Kennedy Assassination Tapes, book.book.editions, The Kennedy Assassination Tapes
The JFK assassination, book.written_work.subjects, History of the United States
john fitzgerald kennedy allegedly assassinated by lee harvey oswald, base.kwebbase.kwconnection.other, Lee Harvey Oswald
The JFK assassination, book.written_work.author, Carl Oglesby
John F. Kennedy, people.person.profession, Author
John F. Kennedy, people.person.children, John F. Kennedy Jr.
Assassination of John F. Kennedy, common.topic.article, m.01q1wn
Assassination of John F. Kennedy, film.film_subject.films, JFK
Lyndon B. Johnson, government.us_vice_president.to_president, John F. Kennedy
An Unfinished Life: John F. Kennedy, 1917–1963, book.book.editions, An Unfinished Life: John F. Kennedy, 1917-1963
Assassination of John F. Kennedy, book.book_subject.works, Blood, Money & Power
On November 22, 1963, Kennedy was assassinated as he and his wife drove through Dallas, Texas., base.kwebbase.kwsentence.dates, m.0c0zkjd
m.0b46sw8, common.webpage.topic, John F. Kennedy
John F. Kennedy, people.person.profession, Writer
John F. Kennedy, people.deceased_person.cause_of_death, Assassination
lee harvey oswald allegedly assassinated john fitzgerald kennedy, base.kwebbase.kwconnection.other, John F. Kennedy
John F. Kennedy, freebase.valuenotation.is_reviewed, Date of birth
John F. Kennedy, book.author.works_written, Words to remember
John F. Kennedy, people.person.education, m.0127vzjh
John F. Kennedy, common.topic.notable_for, g.12564_fr4
John F. Kennedy, book.book_subject.works, The Kennedy Assassination Tapes
The killing of a president : the complete photographic record of the JFK Assassination, the conspiracy and the cover-up, book.written_work.subjects, United States of America
John F. Kennedy, book.book_subject.works, Four Days in November
On November 22, 1963, Kennedy was assassinated as he and his wife drove through Dallas, Texas., base.kwebbase.kwsentence.next_sentence, Lee Harvey Oswald, a young ex-Marine with links to the Soviet Union, was arrested.
John F. Kennedy, people.person.gender, Male
Assassination of John F. Kennedy, common.topic.image, JFK limousine
Assassination of John F. Kennedy, time.event.locations, Dealey Plaza
Dealey Plaza, location.location.events, Assassination of John F. Kennedy
Date of birth, freebase.valuenotation.is_reviewed, Lee Harvey Oswald
Frame 313: The JFK Assassination Theories, common.topic.notable_types, Film
John F. Kennedy, people.person.sibling_s, m.03lfq3_
John F. Kennedy Jr., people.person.education, m.09jt204
The Kennedy Assassination Tapes, common.topic.notable_for, g.125fb40m7
John F. Kennedy, people.person.sibling_s, m.02_wjwf
Assassination of John F. Kennedy, base.schemastaging.context_name.pronunciation, g.125_mjknt
Robert J. Groden, book.author.works_written, The killing of a president : the complete photographic record of the JFK Assassination, the conspiracy and the cover-up
The ex-ambassador to Russia, WA Harriman, urged Kennedy to give Khrushchev a chance to save face., base.kwebbase.kwsentence.kwtopic, John F. Kennedy
The killing of a president : the complete photographic record of the JFK Assassination, the conspiracy and the cover-up, book.written_work.subjects, History of the United States
The Kennedy Assassination Tapes, book.written_work.author, Max Holland
John F. Kennedy, people.deceased_person.place_of_death, Dallas
Live by the sword, book.written_work.subjects, Assassination of John F. Kennedy
Assassination of John F. Kennedy, book.book_subject.works, Praise From a Future Generation: The Assassination of John F. Kennedy and the First Generation Critics of the Warren Report
John F. Kennedy, base.kwebbase.kwtopic.has_sentences, Two days later, Oswald was shot and killed while in police custody by Jack Ruby, a nightclub owner.
Assassination of John F. Kennedy, book.book_subject.works, The Death of a President
Carl Oglesby, book.author.works_written, The JFK assassination
John F. Kennedy, book.author.works_written, Kennedy and the press
John F. Kennedy, book.author.works_written, The quotable Kennedy
Assassination of John F. Kennedy, book.book_subject.works, Four Days in November
Films from the Sixth Floor, film.film.subjects, Assassination of John F. Kennedy
m.0b48xzc, common.webpage.topic, John F. Kennedy
John F. Kennedy Jr., people.person.profession, Writer
An Unfinished Life: John F. Kennedy, 1917–1963, book.written_work.subjects, History of the United States
Assassination of John F. Kennedy, common.topic.notable_for, g.1256nvkz9
Kennedy and the press, book.written_work.author, John F. Kennedy
Assassination of John F. Kennedy, base.culturalevent.event.entity_involved, John F. Kennedy
John F. Kennedy, book.book_subject.works, Kennedy
JFK, film.film.subjects, John F. Kennedy
John F. Kennedy, book.book_subject.works, An Unfinished Life: John F. Kennedy, 1917–1963
John F. Kennedy, people.deceased_person.place_of_death, Dallas
Robert F. Kennedy, base.crime.crime_victim.crime_type, Assassination
John F. Kennedy, base.kwebbase.kwtopic.connections_to, lee harvey oswald allegedly assassinated john fitzgerald kennedy
Assassination of John F. Kennedy, base.culturalevent.event.entity_involved, Lee Harvey Oswald
Two days later, Oswald was shot and killed while in police custody by Jack Ruby, a nightclub owner., base.kwebbase.kwsentence.kwtopic, John F. Kennedy
The Kennedy Assassination Tapes, book.book.editions, The Kennedy assassination tapes
\t John F. Kennedy, common.topic.notable_for, g.125bc6x2p
John F. Kennedy, freebase.valuenotation.is_reviewed, Gender
Assassination of John F. Kennedy, film.film_subject.films, Executive Action
Jackie’s Strength, music.composition.subjects, Assassination of John F. Kennedy
John F. Kennedy, people.person.education, m.0125n7tg
John F. Kennedy Jr., people.person.education, m.04hx603
Assassination of John F. Kennedy, film.film_subject.films, Films from the Sixth Floor
Lee Harvey Oswald, a young ex-Marine with links to the Soviet Union, was arrested., base.kwebbase.kwsentence.contains_connections, john fitzgerald kennedy allegedly assassinated by lee harvey oswald
John F. Kennedy Jr., people.person.profession, Journalist
John F. Kennedy, people.person.children, Patrick Bouvier Kennedy
lee harvey oswald allegedly assassinated john fitzgerald kennedy, base.kwebbase.kwconnection.subject, Lee Harvey Oswald
John F. Kennedy, freebase.valuenotation.is_reviewed, President number
John F. Kennedy, base.crime.crime_victim.crime_type, Assassination
John F. Kennedy Jr., people.person.sibling_s, m.07ydm_0
Assassination of John F. Kennedy, time.event.locations, Dallas
John F. Kennedy, freebase.valuenotation.is_reviewed, Place of death
Kennedy family, people.family.members, John Schlossberg
An Unfinished Life: John F. Kennedy, 1917–1963, book.written_work.subjects, Late 20th Century
John F. Kennedy, base.kwebbase.kwconnection.subject, john fitzgerald kennedy allegedly assassinated by lee harvey oswald
John F. Kennedy, book.book_subject.works, The Making of the President, 1960
John F. Kennedy, base.kwebbase.kwtopic.connections_from, john fitzgerald kennedy allegedly assassinated by lee harvey oswald
In Vienna, in June, 1961, Kennedy had an unproductive meeting with Soviet Prime Minister Krushchev., base.kwebbase.kwsentence.dates, m.0c0zkdz
John F. Kennedy, book.author.works_written, Sam Houston & the Senate
John F. Kennedy, people.person.education, m.0s94pc9
John F. Kennedy Jr., common.topic.image, Jfk jr.jpg
Dallas, people.deceased_person.place_of_death, Lee Harvey Oswald
Lee Harvey Oswald, a young ex-Marine with links to the Soviet Union, was arrested., base.kwebbase.kwsentence.kwtopic, John F. Kennedy
Assassination of John F. Kennedy, symbols.namesake.named_after, John F. Kennedy
John F. Kennedy, people.person.education, m.035j_7r
Assassination of John F. Kennedy, common.topic.notable_types, Event
John F. Kennedy Jr., people.person.education, m.04hd96q
John F. Kennedy, people.person.spouse_s, m.02h_bpj
Assassination of John F. Kennedy, base.crime.crime.victim_s, John F. Kennedy
Place of death, freebase.valuenotation.is_reviewed, Lee Harvey Oswald
John F. Kennedy, people.person.profession, Screenwriter
John F. Kennedy, common.topic.webpage, m.09y460p
John F. Kennedy, common.topic.article, m.05bsz7m
John F. Kennedy, freebase.valuenotation.is_reviewed, Place of birth
John F. Kennedy, book.book_subject.works, The Fitzgeralds and the Kennedys
John F. Kennedy, common.topic.webpage, m.0b48xzc
JFK, film.film.subjects, Assassination of John F. Kennedy
John F. Kennedy, book.book_subject.works, America divided
An Unfinished Life: John F. Kennedy, 1917–1963, common.topic.notable_for, g.125689ffw
Frame 313: The JFK Assassination Theories, film.film.personal_appearances, m.0yl7g7g
John F. Kennedy Jr., common.topic.image, JFKJr2
In Vienna, in June, 1961, Kennedy had an unproductive meeting with Soviet Prime Minister Krushchev., base.kwebbase.kwsentence.next_sentence, The Soviets resumed building nuclear weapons, and Kennedy responded by resuming tests and increasing American missile production.
John F. Kennedy Jr., people.person.nationality, United States of America
John F. Kennedy Jr., people.person.sibling_s, m.0pbycd1
John F. Kennedy, book.book_subject.works, Boom!
Assassination of John F. Kennedy, base.newsevents.videotaped_event.footage, Zapruder film
m.09x5n2n, common.webpage.topic, John F. Kennedy
The killing of a president : the complete photographic record of the JFK Assassination, the conspiracy and the cover-up, book.written_work.author, Robert J. Groden
John F. Kennedy, freebase.valuenotation.is_reviewed, Children
John F. Kennedy, people.person.education, m.0127txc2
John F. Kennedy, common.topic.webpage, m.09x5n2n
John F. Kennedy, freebase.valuenotation.is_reviewed, Place of death
john fitzgerald kennedy succeeded dwight david eisenhower, base.kwebbase.kwconnection.subject, John F. Kennedy
John F. Kennedy, people.person.education, m.04t5mdc
Gender, freebase.valuenotation.is_reviewed, Lee Harvey Oswald
In Vienna, in June, 1961, Kennedy had an unproductive meeting with Soviet Prime Minister Krushchev., base.kwebbase.kwsentence.kwtopic, John F. Kennedy
Assassination of John F. Kennedy, book.book_subject.works, 11/22/63
John F. Kennedy Jr., people.deceased_person.place_of_death, Atlantic Ocean
John F. Kennedy, people.person.children, Arabella Kennedy
John F. Kennedy, people.person.places_lived, m.04hb_mp
John F. Kennedy, symbols.name_source.namesakes, Assassination of John F. Kennedy
Assassination of John F. Kennedy, book.book_subject.musical_compositions_about_this_topic, Jackie’s Strength
John F. Kennedy, freebase.valuenotation.is_reviewed, Cause of death
John F. Kennedy, common.topic.image, John F. Kennedy Portrait
John F. Kennedy, people.person.education, m.0s94p54
John F. Kennedy, common.topic.webpage, m.09y6s4p
Assassination of John F. Kennedy, common.topic.image, Kennedyb
Four Days in November, book.written_work.subjects, Assassination of John F. Kennedy
John F. Kennedy, common.topic.webpage, m.0b46sw8
John F. Kennedy Jr., people.deceased_person.cause_of_death, Aviation accident or incident
lee harvey oswald allegedly assassinated john fitzgerald kennedy, base.kwebbase.kwconnection.relation, allegedly assassinated
Text and Meaning in Robert Frost's \"Dedication: For John F. Kennedy\", common.topic.subjects, 50th Anniversary of the Assassination of John F. Kennedy
United States of America, people.person.nationality, Lee Harvey Oswald
John F. Kennedy, book.author.works_written, The Berlin crisis
John F. Kennedy, book.author.works_written, The Kennedy presidential press conferences
john fitzgerald kennedy disliked charles andre joseph marie de gaulle, base.kwebbase.kwconnection.other, Charles de Gaulle
John F. Kennedy, people.person.nationality, United States of America
The JFK assassination, common.topic.notable_for, g.125dzdm73
John F. Kennedy, base.kwebbase.kwtopic.has_sentences, Lee Harvey Oswald, a young ex-Marine with links to the Soviet Union, was arrested.
lee harvey oswald allegedly assassinated john fitzgerald kennedy, base.kwebbase.kwconnection.subject, Lee Harvey Oswald
charles andre joseph marie de gaulle difficulties with john fitzgerald kennedy, base.kwebbase.kwconnection.sentence, He was hostile to President Kennedy.
John F. Kennedy, base.kwebbase.kwtopic.has_sentences, The circumstances of Kennedy's death led to a multitude of theories about who was responsible for his death.
John F. Kennedy, people.person.education, m.0n0y0g0
John F. Kennedy, base.crime.crime_victim.crime, Assassination of John F. Kennedy
Place of birth, freebase.valuenotation.is_reviewed, Lee Harvey Oswald
On November 22, 1963, Kennedy was assassinated as he and his wife drove through Dallas, Texas., base.kwebbase.kwsentence.kwtopic, John F. Kennedy
John F. Kennedy, government.us_president.vice_president, Lyndon B. Johnson
John F. Kennedy Jr., common.topic.webpage, m.0b6rpd4
The Kennedy Assassination Tapes, book.written_work.subjects, Assassination of John F. Kennedy
John F. Kennedy, freebase.valuenotation.is_reviewed, Gender
John F. Kennedy Jr., common.topic.notable_for, g.1255l5v81
John F. Kennedy, common.topic.article, m.0230ccb
The Kennedy Assassination Tapes, book.written_work.subjects, John F. Kennedy
John F. Kennedy Jr., people.person.parents, John F. Kennedy
John F. Kennedy Portrait, common.image.image_location, Washington, D.C.
Robert Dallek, book.author.works_written, An Unfinished Life: John F. Kennedy, 1917–1963
john fitzgerald kennedy allegedly assassinated by lee harvey oswald, base.kwebbase.kwconnection.sentence, Lee Harvey Oswald, a young ex-Marine with links to the Soviet Union, was arrested.
John F. Kennedy, people.person.places_lived, m.046ffp7
John F. Kennedy, people.person.places_lived, m.03pfbz7
Assassination of John F. Kennedy, base.culturalevent.event.entity_involved, Lee Harvey Oswald
John F. Kennedy, military.military_person.participated_in_conflicts, World War II
John F. Kennedy, people.person.education, m.0125tzqv
John F. Kennedy, book.book_subject.works, The JFK assassination
John F. Kennedy, book.author.works_written, Legacy of a president
John F. Kennedy, people.person.sibling_s, m.03hs9fc
An Unfinished Life: John F. Kennedy, 1917–1963, common.topic.article, m.05c0dpb
John F. Kennedy, book.book_subject.works, The killing of a president : the complete photographic record of the JFK Assassination, the conspiracy and the cover-up
An Unfinished Life: John F. Kennedy, 1917–1963, common.topic.notable_types, Book
The killing of a president : the complete photographic record of the JFK Assassination, the conspiracy and the cover-up, book.written_work.subjects, Assassination of John F. Kennedy
Assassination of John F. Kennedy, common.topic.subject_of, Text and Meaning in Robert Frost's \"Dedication: For John F. Kennedy\"
John F. Kennedy, people.person.parents, Joseph P. Kennedy, Sr.
The JFK assassination, book.written_work.subjects, Late 20th Century
fidel castro defeated invasion by john fitzgerald kennedy, base.kwebbase.kwconnection.other, John F. Kennedy
nikita sergeyevich khrushchev met john fitzgerald kennedy, base.kwebbase.kwconnection.other, John F. Kennedy
John F. Kennedy, media_common.dedicatee.dedications, m.04tm7xj
John F. Kennedy, people.person.education, m.0125jfhh
John F. Kennedy, people.person.sibling_s, m.03lfq4h
m.0b46nf9, common.webpage.topic, John F. Kennedy
John F. Kennedy Jr., people.person.parents, Jacqueline Kennedy Onassis
The Kennedy Assassination Tapes, common.topic.article, m.065xwz8
Assassination of John F. Kennedy, book.book_subject.works, Mortal Error: The Shot That Killed JFK
John F. Kennedy, people.person.education, m.0125d08t
Lee Harvey Oswald, base.kwebbase.kwtopic.connections_to, john fitzgerald kennedy allegedly assassinated by lee harvey oswald
john fitzgerald kennedy attacked fidel castro, base.kwebbase.kwconnection.subject, John F. Kennedy
john fitzgerald kennedy disliked charles andre joseph marie de gaulle, base.kwebbase.kwconnection.subject, John F. Kennedy
Robert F. Kennedy, people.deceased_person.cause_of_death, Assassination
John F. Kennedy, freebase.valuenotation.is_reviewed, Parents
The killing of a president : the complete photographic record of the JFK Assassination, the conspiracy and the cover-up, book.written_work.subjects, John F. Kennedy
John F. Kennedy, people.person.education, m.04yzw40
John F. Kennedy, book.book_subject.works, The Kennedy imprisonment
John F. Kennedy, base.kwebbase.kwtopic.has_sentences, He was turned down by the Army because of a bad back, but was accepted by the Navy in 1941.
Zapruder film, film.film.subjects, Assassination of John F. Kennedy
John F. Kennedy, book.book_subject.works, Forty ways to look at JFK
John F. Kennedy, base.kwebbase.kwtopic.has_sentences, The Republican candidate was Richard M. Nixon.
The killing of a president : the complete photographic record of the JFK Assassination, the conspiracy and the cover-up, book.written_work.subjects, Late 20th Century
John F. Kennedy, people.person.nationality, United States of America
\t John F. Kennedy, common.topic.article, m.0glyd8q
John F. Kennedy, base.kwebbase.kwtopic.connections_from, john fitzgerald kennedy disliked charles andre joseph marie de gaulle
John F. Kennedy, book.book_subject.works, Live by the sword
The circumstances of Kennedy's death led to a multitude of theories about who was responsible for his death., base.kwebbase.kwsentence.kwtopic, John F. Kennedy
charles andre joseph marie de gaulle difficulties with john fitzgerald kennedy, base.kwebbase.kwconnection.other, John F. Kennedy
john fitzgerald kennedy attacked fidel castro, base.kwebbase.kwconnection.relation, attacked
Assassination of John F. Kennedy, book.book_subject.works, 16 Questions on the Assassination
John F. Kennedy, freebase.valuenotation.is_reviewed, Date of death
John F. Kennedy, people.person.education, m.03lll60
John F. Kennedy, people.person.parents, Rose Kennedy
Two days later, Oswald was shot and killed while in police custody by Jack Ruby, a nightclub owner., base.kwebbase.kwsentence.next_sentence, The circumstances of Kennedy's death led to a multitude of theories about who was responsible for his death.
John F. Kennedy, people.deceased_person.cause_of_death, Gunshot
John F. Kennedy, common.topic.image, Greeting Nikita Khrushchev in Vienna in 1961
The circumstances of Kennedy's death led to a multitude of theories about who was responsible for his death., base.kwebbase.kwsentence.next_sentence, None of the theories has been proved.
The JFK assassination, book.written_work.subjects, Assassination of John F. Kennedy
Robert F. Kennedy, freebase.valuenotation.is_reviewed, Place of death
John F. Kennedy, common.topic.image, JFK portrait
John F. Kennedy, book.book_subject.works, JFK and LBJ
John F. Kennedy, people.person.ethnicity, Irish American
John F. Kennedy, people.person.sibling_s, m.03lfpt2
John F. Kennedy, common.topic.notable_for, g.125c_wrr5
None of the theories has been proved., base.kwebbase.kwsentence.previous_sentence, The circumstances of Kennedy's death led to a multitude of theories about who was responsible for his death.
Date of death, freebase.valuenotation.is_reviewed, Lee Harvey Oswald
Kennedy was given a state funeral, attended by the leaders of more than 90 nations., base.kwebbase.kwsentence.kwtopic, John F. Kennedy
Assassination of John F. Kennedy, book.book_subject.works, Regicide: The Official Assassination of John F. Kennedy
john fitzgerald kennedy allegedly assassinated by lee harvey oswald, base.kwebbase.kwconnection.relation, allegedly assassinated by
john fitzgerald kennedy allegedly assassinated by lee harvey oswald, base.kwebbase.kwconnection.other, Lee Harvey Oswald
He was turned down by the Army because of a bad back, but was accepted by the Navy in 1941., base.kwebbase.kwsentence.kwtopic, John F. Kennedy
Assassination of John F. Kennedy, book.book_subject.works, Live by the sword
John F. Kennedy, freebase.valuenotation.is_reviewed, Date of death
Robert F. Kennedy, freebase.valuenotation.is_reviewed, Date of death
John F. Kennedy, base.kwebbase.kwtopic.connections_from, john fitzgerald kennedy attacked fidel castro
John F. Kennedy, people.person.education, m.04kr2n0
John F. Kennedy, common.topic.notable_types, US President
Lee Harvey Oswald, a young ex-Marine with links to the Soviet Union, was arrested., base.kwebbase.kwsentence.previous_sentence, On November 22, 1963, Kennedy was assassinated as he and his wife drove through Dallas, Texas.
John F. Kennedy Jr., people.person.sibling_s, m.07ydn0q
Assassination of John F. Kennedy, book.book_subject.works, Reclaiming History: The Assassination of President John F. Kennedy
John F. Kennedy, people.person.education, m.0123x2k3
John F. Kennedy Jr., people.person.education, m.02wpc0x
John F. Kennedy, base.kwebbase.kwtopic.has_sentences, The ex-ambassador to Russia, WA Harriman, urged Kennedy to give Khrushchev a chance to save face.
John F. Kennedy Jr., common.topic.article, m.0150ph
John F. Kennedy, book.book_subject.works, One Minute to Midnight
m.0b6rpd4, common.webpage.topic, John F. Kennedy Jr.
The killing of a president : the complete photographic record of the JFK Assassination, the conspiracy and the cover-up, common.topic.notable_types, Book
nikita sergeyevich khrushchev met john fitzgerald kennedy, base.kwebbase.kwconnection.relation, met
john fitzgerald kennedy allegedly assassinated by lee harvey oswald, base.kwebbase.kwconnection.subject, John F. Kennedy
Assassination of John F. Kennedy, book.book_subject.works, The Secret Team
m.0b6rdfq, common.webpage.topic, John F. Kennedy
John F. Kennedy, common.topic.webpage, m.0b48tfl
rachel carson influenced john f kennedy, base.kwebbase.kwconnection.sentence, The controversy captured the attention of President John F. Kennedy, who directed his Science Advisory Committee to investigate the matter.
John F. Kennedy, book.book_subject.works, Conversations With Kennedy

Answer: Lee Harvey Oswald