Steven A. Sund
E190768
Steven A. Sund is a former Chief of the United States Capitol Police best known for leading the force during the January 6, 2021 attack on the U.S. Capitol and subsequently resigning amid scrutiny of the security response.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Steven A. Sund canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T1139322 — 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: Steven A. Sund Context triple: [Chief of the United States Capitol Police, precededByOfficeHolder, Steven A. Sund]
-
A.
Martin J. Hillenbrand
Martin J. Hillenbrand was an American career diplomat who held several key Cold War-era posts, including serving as U.S. Ambassador to Hungary and later to the Federal Republic of Germany.
-
B.
Steven B. Sample
Steven B. Sample was an American electrical engineer and academic leader best known for serving as president of the University of Southern California and for his influential role in expanding its global and research profile.
-
C.
Eric D. Schneider
Eric D. Schneider was a scientist and author known for his work on thermodynamics and complex systems, particularly in collaboration with Dorion Sagan.
-
D.
David M. Satterfield
David M. Satterfield is an American diplomat and former U.S. ambassador who has held several senior foreign policy roles, including directing Rice University's Baker Institute for Public Policy.
-
E.
Michael V. Drake
Michael V. Drake is an American academic leader and physician who has served as president of both The Ohio State University and the University of California system.
- 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: Steven A. Sund Target entity description: Steven A. Sund is a former Chief of the United States Capitol Police best known for leading the force during the January 6, 2021 attack on the U.S. Capitol and subsequently resigning amid scrutiny of the security response.
-
A.
Martin J. Hillenbrand
Martin J. Hillenbrand was an American career diplomat who held several key Cold War-era posts, including serving as U.S. Ambassador to Hungary and later to the Federal Republic of Germany.
-
B.
Steven B. Sample
Steven B. Sample was an American electrical engineer and academic leader best known for serving as president of the University of Southern California and for his influential role in expanding its global and research profile.
-
C.
Eric D. Schneider
Eric D. Schneider was a scientist and author known for his work on thermodynamics and complex systems, particularly in collaboration with Dorion Sagan.
-
D.
David M. Satterfield
David M. Satterfield is an American diplomat and former U.S. ambassador who has held several senior foreign policy roles, including directing Rice University's Baker Institute for Public Policy.
-
E.
Michael V. Drake
Michael V. Drake is an American academic leader and physician who has served as president of both The Ohio State University and the University of California system.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
book
ⓘ
human ⓘ law enforcement official ⓘ police officer ⓘ |
| almaMater | John Jay College of Criminal Justice ⓘ |
| appointedBy |
Capitol Police Board
ⓘ
surface form:
United States Capitol Police Board
|
| author | Steven A. Sund self-linksurface differs ⓘ |
| countryOfCitizenship | United States of America ⓘ |
| education |
bachelor’s degree in justice administration
ⓘ
master’s degree in terrorism studies ⓘ |
| employer | United States Capitol Police ⓘ |
| familyName | Sund ⓘ |
| fieldOfWork |
law enforcement
ⓘ
security management ⓘ |
| gender | male ⓘ |
| genreOfWriting | non-fiction ⓘ |
| givenName | Steven ⓘ |
| hasExperienceIn |
critical incident response
ⓘ
crowd management ⓘ protective operations ⓘ |
| hasRole | incident commander in major events in Washington, D.C. ⓘ |
| hasWritten | Courage Under Fire: Under Siege and Outnumbered 58 to 1 on January 6 ⓘ |
| languageOfWorkOrName | English ⓘ |
| name | Steven A. Sund self-link ⓘ |
| notableEvent |
2021 United States Capitol attack
ⓘ
surface form:
January 6, 2021 attack on the United States Capitol
|
| notableFor | serving as Chief of the United States Capitol Police during the January 6, 2021 attack on the U.S. Capitol ⓘ |
| notableWork | Courage Under Fire: Under Siege and Outnumbered 58 to 1 on January 6 ⓘ |
| occupation |
author
ⓘ
police chief ⓘ security consultant ⓘ |
| officeEndTime | January 2021 ⓘ |
| officeStartTime | 2019 ⓘ |
| positionHeld |
Chief of the United States Capitol Police
ⓘ
Metropolitan Police Department of the District of Columbia ⓘ
surface form:
Commander in the Metropolitan Police Department of the District of Columbia
|
| predecessor | Matthew R. Verderosa ⓘ |
| previousEmployer | Metropolitan Police Department of the District of Columbia ⓘ |
| reasonForLeavingOffice | resignation following scrutiny of the security response to the January 6, 2021 attack on the U.S. Capitol ⓘ |
| residence | Virginia ⓘ |
| serviceBranch | Metropolitan Police Department of the District of Columbia ⓘ |
| spokeAt |
U.S. House hearings on the January 6, 2021 attack
ⓘ
U.S. Senate hearings on the January 6, 2021 attack ⓘ |
| subjectOf |
congressional testimony about the January 6, 2021 attack on the U.S. Capitol
ⓘ
media interviews regarding the January 6 security response ⓘ public debate over intelligence sharing before January 6, 2021 ⓘ public discussion of National Guard deployment delays on January 6, 2021 ⓘ |
| workLocation | Washington, D.C. ⓘ |
| yearsActive | 1980s–2020s ⓘ |
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: Steven A. Sund Description of subject: Steven A. Sund is a former Chief of the United States Capitol Police best known for leading the force during the January 6, 2021 attack on the U.S. Capitol and subsequently resigning amid scrutiny of the security response.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Courage Under Fire: Under Siege and Outnumbered 58 to 1 on January 6