William James Leahy
Incident
Police Officer William Leahy died as the result of cancer that he developed following his assignment to the search and recovery efforts at the World Trade Center site following the 9/11 Terrorist Attacks.
Officer Leahy had served with the Port Authority of New York and New Jersey Police Department for 26 years and was assigned to John F. Kennedy International Airport.
Officer Leahy had served with the Port Authority of New York and New Jersey Police Department for 26 years and was assigned to John F. Kennedy International Airport.
September 11, 2001 - The Years After
Police Officer William James Leahy was assigned to the search and recovery at the World Trade Center site after September 11, 2001. He was 32 years old that fall.
He died on June 6, 2019 - 17 years and 8 months later - of an illness contracted there. He was 49.
He is one of 600 officers honored here, and one of 18 at Port Authority of New York and New Jersey Police Department.
The most recent of these deaths was October 24, 2025.
Officers who worked the search, rescue, and recovery at the World Trade Center site breathed contaminated air for weeks and months afterward. Many developed cancers and respiratory disease, and they have gone on dying of it ever since.
Seventy-two officers were killed on the morning itself. Hundreds more have died in the years that followed. They are honored here together, because the same attack killed them all. With some it simply took longer.
Survivors
He is survived by his parents.
In Our Keeping
- Permanent identifier
neuraspine_01krbxtqgbgp5pftpg4s67h302- Stewardship
- Maintained by NeuraWeb Global Inc.
- Added to badge.nw
- August 2, 2026
- Last updated
- August 2, 2026
Honored here by 1 tribute.
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Also honored at requiem.nw. One record, 2 gates. William is one person.
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Tributes
You walked into it and it took years to finish the job.
Police Officer Leahy gave the Port Authority of New York and New Jersey Police Department 26 years.
Thank you for your service to the Jersey City community. Gone but never to be forgotten.
Rest easy, Police Officer Leahy.
— S. Vincent Anthony, U.S. Army 1985-1993
Agency
Service Record
Incident Details
The Sacrifice · Illness
Port Authority of New York and New Jersey Police Department has lost 60 officers; 18 of them lost to illness.
William is one of 77 officers lost to illness in NJ, 11.9% of the 647 remembered there.
William is one of 2,028 officers lost to illness in the United States, 7.4% of the 27,552 remembered there.
William is one of 2,979 officers lost to illness worldwide, 8.7% of the 34,103 remembered here.
34,103 officers are remembered on this memorial. Each number below is one of them.
Time
In 2019, 2 officers at Port Authority of New York and New Jersey Police Department were lost to illness, more than in any other year.
In 2019, 5 officers in NJ were lost to illness, the 5th heaviest of 24 years on record. The heaviest was 2020, with 20.
In 2019, 45 officers in the United States were lost to illness, the 9th heaviest of 108 years on record. The heaviest was 2021, with 564.
In 2019, 47 officers worldwide were lost to illness, the 9th heaviest of 197 years on record. The heaviest was 2021, with 566.
Who
William was 49. Of the 18 lost to illness at Port Authority of New York and New Jersey Police Department whose age is recorded, half were between 55 and 65; the middle age was 62. William had served 26 years; the middle length of service was 27.3 years.
William was 49. Of the 75 lost to illness in NJ whose age is recorded, half were between 47 and 61.5; the middle age was 52. William had served 26 years; the middle length of service was 23 years.
William was 49. Of the 1,996 lost to illness in the United States whose age is recorded, half were between 42 and 58; the middle age was 51. William had served 26 years; the middle length of service was 20 years.
William was 49. Of the 2,916 lost to illness worldwide whose age is recorded, half were between 39 and 56; the middle age was 49. William had served 26 years; the middle length of service was 20 years.
When
June holds 5.6% of these deaths at Port Authority of New York and New Jersey Police Department; July holds the most, 27.8%. Thursdays: 22.2%.
June holds 5.2% of these deaths in NJ; April holds the most, 16.9%. Thursdays: 20.8%.
June holds 4.9% of these deaths in the United States; October holds the most, 14.9%. Thursdays: 15.7%.
June holds 6.1% of these deaths worldwide; October holds the most, 12.6%. Thursdays: 15.2%.
How
Illness deaths account for 30% of all 60 deaths at Port Authority of New York and New Jersey Police Department, the 2nd most common cause. The weapon recorded was aircraft; passenger jet, in 100% of these deaths.
Illness deaths account for 11.9% of all 647 deaths in NJ, the 3rd most common cause. The weapon recorded was aircraft; passenger jet, in 42.9% of these deaths.
Illness deaths account for 7.4% of all 27,552 deaths in the United States, the 3rd most common cause. The weapon recorded was aircraft; passenger jet, in 29.5% of these deaths.
Illness deaths account for 8.7% of all 34,103 deaths worldwide, the 3rd most common cause. The weapon recorded was aircraft; passenger jet, in 20.1% of these deaths.
His people
Port Authority of New York and New Jersey Police Department has 60 officers remembered here, William among them.
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Bertram Winkler
Mar 21, 1972
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Arthur Milton Ansert Jr.
Oct 8, 1973
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Henry J. Koebel
May 26, 1978
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William J. Perry
Dec 22, 1980
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Scott R. Parker
Sep 5, 1983
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George Gerard Howard
Sep 11, 2001
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Christopher Charles Amoroso
Sep 11, 2001
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Maurice Vincent Barry
Sep 11, 2001
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Liam Callahan
Sep 11, 2001
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Robert Dominick Cirri, Sr.
Sep 11, 2001
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Clinton Davis, Sr.
Sep 11, 2001
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Donald A. Foreman
Sep 11, 2001
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Gregg John Froehner
Sep 11, 2001
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Thomas Edward Gorman
Sep 11, 2001
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Uhuru Gonja Houston
Sep 11, 2001
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Stephen Huczko, Jr.
Sep 11, 2001
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Anthony Peter Infante, Jr.
Sep 11, 2001
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Paul William Jurgens
Sep 11, 2001
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Robert Michael Kaulfers
Sep 11, 2001
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Paul Laszczynski
Sep 11, 2001
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David Prudencio LeMagne
Sep 11, 2001
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John Joseph Lennon, Jr.
Sep 11, 2001
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John Dennis Levi
Sep 11, 2001
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James Francis Lynch
Sep 11, 2001
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Kathy Nancy Mazza
Sep 11, 2001
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Ferdinand V. Morrone
Sep 11, 2001
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Donald James McIntyre
Sep 11, 2001
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Walter Arthur McNeil
Sep 11, 2001
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Joseph Michael Navas
Sep 11, 2001
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James A. Nelson
Sep 11, 2001
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Alfonse Joseph Niedermeyer III
Sep 11, 2001
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James Wendell Parham
Sep 11, 2001
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Bruce Albert Reynolds
Sep 11, 2001
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Antonio Jose Rodrigues
Sep 11, 2001
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Richard Rodriguez
Sep 11, 2001
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James A. Romito
Sep 11, 2001
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John P. Skala Jr.
Sep 11, 2001
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Walwyn Wellington Stuart, Jr.
Sep 11, 2001
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Kenneth Francis Tietjen
Sep 11, 2001
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Nathaniel Webb
Sep 11, 2001
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Michael T. Wholey
Sep 11, 2001
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Dominick A. Pezzulo
Sep 11, 2001
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John Mark Cortazzo
Mar 14, 2009
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Pavlos D. Pallas
Mar 14, 2011
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Steven John Tursellino
Sep 13, 2013
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Vincent Joseph Oliva
Nov 27, 2013
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Lawrence A. Guarnieri
Nov 4, 2014
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Charles Barzydlo
Jul 17, 2016
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Mark J. Meier
Jul 31, 2017
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John J. Brant
Jul 19, 2018
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Michael Edmund Teel
Mar 21, 2019
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William James Leahy
Jun 6, 2019
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Thomas M. Inman
Apr 12, 2020
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William E. Doubraski
Nov 23, 2020
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Lawrence Rand
Apr 8, 2021
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Frederick G. Maley
Jul 17, 2022
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David J. Lee
Jul 29, 2022
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Richard Louis Ruiz, Sr.
Nov 18, 2023
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John M. Collins
Apr 26, 2024
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Anthony J. Mezzacappa, Jr.
May 14, 2024
Where
Where the Name Is Cut
National Law Enforcement Officers Memorial · Panel 23-W
What is kept
Photographs, film, sound and papers — what survived a life.
Also Remembered
National Law Enforcement Officers Memorial — requiem.nw →
Others Who Wore This Badge
59 officers from Port Authority of New York and New Jersey Police Department are honored on badge.nw. Showing the 16 most recent.















