Jacob Leon Rubenstein
E158031
Jacob Leon Rubenstein, better known as Jack Ruby, was the American nightclub owner who fatally shot Lee Harvey Oswald, the accused assassin of President John F. Kennedy, on live television in 1963.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Jacob Leon Rubenstein canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T1286129 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Jacob Leon Rubenstein Context triple: [Jack Ruby, fullName, Jacob Leon Rubenstein]
-
A.
Louis Bernstein
Louis Bernstein is the birth name of Leonard Bernstein, the renowned American composer, conductor, and pianist.
-
B.
Peretz Rosenbaum
Peretz Rosenbaum, better known as Paul Rand, was a pioneering American graphic designer renowned for his influential corporate logo designs for companies such as IBM, ABC, and UPS.
-
C.
Peretz Bernstein
Peretz Bernstein was a Zionist activist and Israeli politician who served as a signatory of Israel’s Declaration of Independence and later as a government minister.
-
D.
Zerach Warhaftig
Zerach Warhaftig was an Israeli religious Zionist politician, jurist, and signatory of the Israeli Declaration of Independence who served for many years as a Knesset member and government minister.
-
E.
Fritz Bernstein
Fritz Bernstein was a Zionist economist and Israeli politician who served as a member of Israel’s pre-state legislature and later as Minister of Trade and Industry.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Jacob Leon Rubenstein Target entity description: Jacob Leon Rubenstein, better known as Jack Ruby, was the American nightclub owner who fatally shot Lee Harvey Oswald, the accused assassin of President John F. Kennedy, on live television in 1963.
-
A.
Louis Bernstein
Louis Bernstein is the birth name of Leonard Bernstein, the renowned American composer, conductor, and pianist.
-
B.
Peretz Rosenbaum
Peretz Rosenbaum, better known as Paul Rand, was a pioneering American graphic designer renowned for his influential corporate logo designs for companies such as IBM, ABC, and UPS.
-
C.
Peretz Bernstein
Peretz Bernstein was a Zionist activist and Israeli politician who served as a signatory of Israel’s Declaration of Independence and later as a government minister.
-
D.
Zerach Warhaftig
Zerach Warhaftig was an Israeli religious Zionist politician, jurist, and signatory of the Israeli Declaration of Independence who served for many years as a Knesset member and government minister.
-
E.
Fritz Bernstein
Fritz Bernstein was a Zionist economist and Israeli politician who served as a member of Israel’s pre-state legislature and later as Minister of Trade and Industry.
- F. None of above. chosen
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
American citizen
ⓘ
convicted murderer ⓘ historical figure ⓘ human ⓘ nightclub owner ⓘ |
| alsoKnownAs | Jack Ruby ⓘ |
| appealCourt | Texas Court of Criminal Appeals ⓘ |
| appealResult | conviction overturned on appeal ⓘ |
| associatedWithEvent |
Assassination of John F. Kennedy
ⓘ
surface form:
assassination of John F. Kennedy
|
| birthDate | 1911-03-25 ⓘ |
| birthName | Jacob Leon Rubenstein self-link ⓘ |
| birthPlace | Chicago, Illinois, United States ⓘ |
| businessLocation |
Dallas, Texas
ⓘ
surface form:
Dallas, Texas, United States
|
| causeOfDeath |
lung cancer
ⓘ
pulmonary embolism ⓘ |
| conflictParticipatedIn | World War II ⓘ |
| convictedOf | murder with malice ⓘ |
| countryOfCitizenship | United States of America ⓘ |
| dateOfJFKAssassination | 1963-11-22 ⓘ |
| dateOfShooting | 1963-11-24 ⓘ |
| deathDate | 1967-01-03 ⓘ |
| deathPlace |
Dallas, Texas
ⓘ
surface form:
Dallas, Texas, United States
|
| diedBeforeRetrial | true ⓘ |
| ethnicGroup | Jewish American ⓘ |
| eventBroadcastOn | live television ⓘ |
| familyName |
Rubinstein
ⓘ
surface form:
Rubenstein
|
| gender | male ⓘ |
| givenName | Jacob ⓘ |
| killed | Lee Harvey Oswald ⓘ |
| locationOfShooting | Dallas Police Headquarters basement ⓘ |
| middleName | Leon ⓘ |
| militaryService | United States Army Air Forces ⓘ |
| movedTo |
Dallas, Texas
ⓘ
surface form:
Dallas, Texas, United States
|
| notableFor |
killing Lee Harvey Oswald
ⓘ
role in events following the assassination of John F. Kennedy ⓘ |
| occupation |
businessman
ⓘ
nightclub owner ⓘ |
| owned | Carousel Club ⓘ |
| placeOfShooting |
Dallas, Texas
ⓘ
surface form:
Dallas, Texas, United States
|
| plannedRetrialLocation |
Wichita Falls, Texas
ⓘ
surface form:
Wichita Falls, Texas, United States
|
| politicalContext |
Cold War
ⓘ
surface form:
Cold War-era United States
|
| religion | Judaism ⓘ |
| sentence | death penalty ⓘ |
| shot | Lee Harvey Oswald ⓘ |
| siblingsCount | multiple siblings ⓘ |
| subjectOf |
United States House Select Committee on Assassinations
ⓘ
surface form:
House Select Committee on Assassinations inquiries
Warren Commission ⓘ
surface form:
Warren Commission investigation
|
| trialFor |
Killing of Lee Harvey Oswald
ⓘ
surface form:
murder of Lee Harvey Oswald
|
| trialLocation |
Dallas, Texas
ⓘ
surface form:
Dallas, Texas, United States
|
| victimOfShooting | Lee Harvey Oswald ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Jacob Leon Rubenstein Description of subject: Jacob Leon Rubenstein, better known as Jack Ruby, was the American nightclub owner who fatally shot Lee Harvey Oswald, the accused assassin of President John F. Kennedy, on live television in 1963.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.