Dallas police officer C.T. Walker
E648698
Dallas police officer C.T. Walker was a law enforcement officer involved in the events surrounding the capture of Lee Harvey Oswald after the assassination of President John F. Kennedy.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Dallas police officer C.T. Walker canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7198990 — 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: Dallas police officer C.T. Walker Context triple: [Arrest of Lee Harvey Oswald, hasParticipant, Dallas police officer C.T. Walker]
-
A.
LAPD officer Rafael Pérez
LAPD officer Rafael Pérez was a central figure in the Rampart scandal, whose corruption and subsequent cooperation with investigators exposed widespread misconduct within the Los Angeles Police Department’s Rampart Division.
-
B.
Gary Zimmerman
Gary Zimmerman is a Pro Football Hall of Fame offensive tackle renowned for his dominant play with the Minnesota Vikings and Denver Broncos in the NFL.
-
C.
Detective Keith Frazier
Detective Keith Frazier is the determined NYPD hostage negotiator portrayed by Denzel Washington in the heist thriller film "Inside Man."
-
D.
Officer Doug Penhall
Officer Doug Penhall is a lovable, wisecracking undercover cop known for his loyalty and comic relief on the TV series "21 Jump Street."
-
E.
Jeffrey Goines
Jeffrey Goines is a mentally unstable, anarchistic activist portrayed by Brad Pitt in the science fiction film "12 Monkeys."
- 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: Dallas police officer C.T. Walker Target entity description: Dallas police officer C.T. Walker was a law enforcement officer involved in the events surrounding the capture of Lee Harvey Oswald after the assassination of President John F. Kennedy.
-
A.
LAPD officer Rafael Pérez
LAPD officer Rafael Pérez was a central figure in the Rampart scandal, whose corruption and subsequent cooperation with investigators exposed widespread misconduct within the Los Angeles Police Department’s Rampart Division.
-
B.
Gary Zimmerman
Gary Zimmerman is a Pro Football Hall of Fame offensive tackle renowned for his dominant play with the Minnesota Vikings and Denver Broncos in the NFL.
-
C.
Detective Keith Frazier
Detective Keith Frazier is the determined NYPD hostage negotiator portrayed by Denzel Washington in the heist thriller film "Inside Man."
-
D.
Officer Doug Penhall
Officer Doug Penhall is a lovable, wisecracking undercover cop known for his loyalty and comic relief on the TV series "21 Jump Street."
-
E.
Jeffrey Goines
Jeffrey Goines is a mentally unstable, anarchistic activist portrayed by Brad Pitt in the science fiction film "12 Monkeys."
- F. None of above. chosen
Statements (12)
| Predicate | Object |
|---|---|
| instanceOf |
person
ⓘ
police officer ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| employer | Dallas Police Department ⓘ |
| fieldOfWork | law enforcement ⓘ |
| gender | male ⓘ |
| hasRole | law enforcement officer in the aftermath of the assassination of John F. Kennedy ⓘ |
| notableFor | involvement in the capture of Lee Harvey Oswald ⓘ |
| occupation | police officer ⓘ |
| participatedIn |
events surrounding the capture of Lee Harvey Oswald
ⓘ
law enforcement response after the assassination of John F. Kennedy ⓘ |
| workLocation | Dallas, Texas ⓘ |
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: Dallas police officer C.T. Walker Description of subject: Dallas police officer C.T. Walker was a law enforcement officer involved in the events surrounding the capture of Lee Harvey Oswald after the assassination of President John F. Kennedy.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.