Prev
Incident
Investigator Cunningham suffered a fatal heart attack shortly after completing a required 45-minute physical training exercise at the Tennessee Law Enforcement Training Academy. He collapsed in the locker room following the exercise.
Investigator Cunningham had served with the Johnson County Sheriff's Department for 1 year.
Survivors
He was survived by his wife and four children.
In Our Keeping
- Permanent identifier
neuraspine_01krbxtpy4pdq7jsr02s72964r- Stewardship
- Maintained by NeuraWeb Global Inc.
- Added to badge.nw
- August 2, 2026
- Last updated
- August 2, 2026
Honored here by 1 tribute.
Are you family? This record can be claimed and maintained by those who knew John. Claim this record.
This page is permanent and free. No fee to view it, no advertising, no tracking, and no account required. It will not be taken down.
Tributes
You barely got started.
Investigator Cunningham gave the Johnson County Sheriff's Office 1 year.
Thank you for your service to the Mountain City community. Gone but never to be forgotten.
Rest easy, Investigator Cunningham.
— S. Vincent Anthony, U.S. Army 1985-1993
Agency
Service Record
Incident Details
The Sacrifice · Cardiac
Johnson County Sheriff's Office has lost 4 officers; 1 of them lost to cardiac events.
John is one of 37 officers lost to cardiac events in TN, 4.8% of the 769 remembered there.
John is one of 1,307 officers lost to cardiac events in the United States, 4.7% of the 27,551 remembered there.
John is one of 1,309 officers lost to cardiac events worldwide, 3.8% of the 34,102 remembered here.
34,102 officers are remembered on this memorial. Each number below is one of them.
Time
In 1986, 1 officer in TN was lost to cardiac events, the 9th heaviest of 26 years on record. The heaviest was 1999, with 4.
In 1986, 7 officers in the United States were lost to cardiac events, the 78th heaviest of 139 years on record. The heaviest was 2014, with 24.
In 1986, 7 officers worldwide were lost to cardiac events, the 78th heaviest of 139 years on record. The heaviest was 2014, with 24.
Who
John was 53. Of the 36 lost to cardiac events in TN whose age is recorded, half were between 41.8 and 54.3; the middle age was 49. John had served 1 year; the middle length of service was 15.5 years.
John was 53. Of the 1,249 lost to cardiac events in the United States whose age is recorded, half were between 43 and 55; the middle age was 48. John had served 1 year; the middle length of service was 15 years.
John was 53. Of the 1,251 lost to cardiac events worldwide whose age is recorded, half were between 42.5 and 55; the middle age was 48. John had served 1 year; the middle length of service was 15 years.
When
January holds 5.4% of these deaths in TN; March holds the most, 13.5%. Wednesdays: 10.8%.
January holds 9.6% of these deaths in the United States, more than any other month. Wednesdays: 14.5%.
January holds 9.5% of these deaths worldwide, more than any other month. Wednesdays: 14.5%.
How
Cardiac deaths account for 25% of all 4 deaths at Johnson County Sheriff's Office, the 2nd most common cause.
Cardiac deaths account for 4.8% of all 769 deaths in TN, the 4th most common cause.
Cardiac deaths account for 4.7% of all 27,551 deaths in the United States, the 4th most common cause.
Cardiac deaths account for 3.8% of all 34,102 deaths worldwide, the 4th most common cause.
His people
Johnson County Sheriff's Office has 4 officers remembered here, John among them.
Where the Name Is Cut
National Law Enforcement Officers Memorial · Panel 55-E
What is kept
Photographs, film, sound and papers — what survived a life.
Others Who Wore This Badge
3 officers from Johnson County Sheriff's Office are honored on badge.nw.
