Ernest Medina
E198419
Ernest Medina was a U.S. Army captain best known for his controversial role and subsequent court-martial in connection with the 1968 My Lai massacre during the Vietnam War.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Ernest Medina canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T1196961 — 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: Ernest Medina Context triple: [My Lai massacre, commandingOfficer, Ernest Medina]
-
A.
Luis Hernández
Luis Hernández is a retired Mexican striker renowned for his prolific goal-scoring for the Mexico national team and clubs in Mexico and abroad, including a notable stint in Major League Soccer.
-
B.
Raul Hernandez
Raul Hernandez was a member of Brigade 2506, the CIA-backed Cuban exile force that participated in the failed 1961 Bay of Pigs invasion against Fidel Castro’s government.
-
C.
Hiram Garcia
Hiram Garcia is a film producer and longtime collaborator of Dwayne Johnson, known for producing major action and adventure movies through Seven Bucks Productions.
-
D.
Ronald Cerritos
Ronald Cerritos is a retired Salvadoran forward best known for his prolific goal-scoring and playmaking in Major League Soccer, particularly with the San Jose Earthquakes.
-
E.
Eduardo Navarro
Eduardo Navarro is a contemporary artist known for his conceptual and often participatory works that explore perception, time, and the relationship between humans and their environment.
- 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: Ernest Medina Target entity description: Ernest Medina was a U.S. Army captain best known for his controversial role and subsequent court-martial in connection with the 1968 My Lai massacre during the Vietnam War.
-
A.
Luis Hernández
Luis Hernández is a retired Mexican striker renowned for his prolific goal-scoring for the Mexico national team and clubs in Mexico and abroad, including a notable stint in Major League Soccer.
-
B.
Raul Hernandez
Raul Hernandez was a member of Brigade 2506, the CIA-backed Cuban exile force that participated in the failed 1961 Bay of Pigs invasion against Fidel Castro’s government.
-
C.
Hiram Garcia
Hiram Garcia is a film producer and longtime collaborator of Dwayne Johnson, known for producing major action and adventure movies through Seven Bucks Productions.
-
D.
Ronald Cerritos
Ronald Cerritos is a retired Salvadoran forward best known for his prolific goal-scoring and playmaking in Major League Soccer, particularly with the San Jose Earthquakes.
-
E.
Eduardo Navarro
Eduardo Navarro is a contemporary artist known for his conceptual and often participatory works that explore perception, time, and the relationship between humans and their environment.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
United States Army officer
ⓘ
human ⓘ |
| afterMilitaryCareer |
worked as a salesman in Wisconsin
ⓘ
worked in real estate in Wisconsin ⓘ |
| allegedRole | allegedly ordered or condoned aggressive search-and-destroy tactics at My Lai ⓘ |
| awardReceived |
Combat Infantryman Badge
ⓘ
Parachutist Badge ⓘ |
| burialPlace | Riverside Cemetery, Menominee, Michigan, United States ⓘ |
| charge | war crimes related to the My Lai massacre ⓘ |
| conflict | Vietnam War ⓘ |
| countryOfCitizenship | United States of America ⓘ |
| dateOfBirth | 1936-08-27 ⓘ |
| dateOfDeath | 2018-05-08 ⓘ |
| educatedAt | New Mexico Military Institute ⓘ |
| employer | United States Army ⓘ |
| era |
20th century
ⓘ
21st century ⓘ |
| ethnicGroup | Mexican American ⓘ |
| familyName | Medina ⓘ |
| givenName | Ernest ⓘ |
| hasCauseOfNotability | alleged command responsibility for actions of Charlie Company at My Lai ⓘ |
| hasMannerOfDeath | natural causes (reported) ⓘ |
| hasMediaCoverage | extensive U.S. and international press coverage following My Lai revelations ⓘ |
| languageSpoken | English ⓘ |
| legalOutcome | acquitted by court-martial of all charges related to My Lai ⓘ |
| militaryBranch | United States Army ⓘ |
| militaryRank | captain ⓘ |
| militaryUnit |
11th Infantry Brigade
ⓘ
1st Battalion, 20th Infantry Regiment ⓘ Americal Division ⓘ |
| notableFor | role in the My Lai massacre ⓘ |
| notableWork | subject of coverage in Seymour Hersh’s reporting on My Lai ⓘ |
| occupation |
real estate agent
ⓘ
salesman ⓘ soldier ⓘ |
| participantIn |
My Lai massacre
ⓘ
surface form:
My Lai operation
court-martial related to the My Lai massacre ⓘ |
| placeOfBirth | Springer, New Mexico, United States ⓘ |
| placeOfDeath |
Marinette, Wisconsin
ⓘ
surface form:
Marinette, Wisconsin, United States
|
| positionHeld | company commander of Charlie Company, 1st Battalion, 20th Infantry Regiment, 11th Infantry Brigade, Americal Division ⓘ |
| religion | Roman Catholic (reported) ⓘ |
| residence |
Marinette, Wisconsin
ⓘ
surface form:
Marinette, Wisconsin, United States
|
| serviceNumber | U.S. Army officer service number (specific number not stated) ⓘ |
| sexOrGender | male ⓘ |
| significantEvent | court-martial acquittal on all charges ⓘ |
| subjectOf |
U.S. Army court-martial proceedings in 1971
ⓘ
numerous books and documentaries on the My Lai massacre ⓘ |
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: Ernest Medina Description of subject: Ernest Medina was a U.S. Army captain best known for his controversial role and subsequent court-martial in connection with the 1968 My Lai massacre during the Vietnam War.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.