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Incident
Detention Deputy Mark Anderson suffered a fatal heart attack after interacting with a belligerent inmate in the Olmsted County Adult Detention Center.
Deputy Anderson was working alone managing gym-use time for inmates when one of the inmates became extremely upset, prompting Deputy Anderson to call for emergency response from other deputies. Additional deputies responded and they escorted the inmate back to his unit.
Deputy Anderson was preparing for a subsequent shift when he collapsed in the locker room.
Deputy Anderson had served with the Olmsted County Sheriff's Office for 11 years.
Survivors
He is survived by his daughter and brother, as well as his significant other and her son.
In Our Keeping
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- Maintained by NeuraWeb Global Inc.
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- August 2, 2026
- Last updated
- August 2, 2026
Honored here by 1 tribute.
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Tributes
I never knew you. I am standing here anyway.
Detention Deputy Anderson gave the Olmsted County Sheriff's Office 11 years.
Thank you for your service to the Rochester community. Gone but never to be forgotten.
Rest easy, Detention Deputy Anderson.
— S. Vincent Anthony, U.S. Army 1985-1993
Agency
Service Record
Incident Details
The Sacrifice · Cardiac
Olmsted County Sheriff's Office has lost 2 officers; 1 of them lost to cardiac events.
Mark is one of 26 officers lost to cardiac events in MN, 8.9% of the 293 remembered there.
Mark is one of 1,307 officers lost to cardiac events in the United States, 4.7% of the 27,552 remembered there.
Mark is one of 1,309 officers lost to cardiac events worldwide, 3.8% of the 34,103 remembered here.
34,103 officers are remembered on this memorial. Each number below is one of them.
Time
In 2021, 1 officer in MN was lost to cardiac events, the 3rd heaviest of 24 years on record. The heaviest was 1979, with 2.
In 2021, 23 officers in the United States were lost to cardiac events, the 2nd heaviest of 139 years on record. The heaviest was 2014, with 24.
In 2021, 23 officers worldwide were lost to cardiac events, the 2nd heaviest of 139 years on record. The heaviest was 2014, with 24.
Who
Mark was 52. Of the 26 lost to cardiac events in MN whose age is recorded, half were between 42.8 and 52; the middle age was 47.5. Mark had served 11.1 years; the middle length of service was 16 years.
Mark was 52. 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. Mark had served 11.1 years; the middle length of service was 15 years.
Mark was 52. 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. Mark had served 11.1 years; the middle length of service was 15 years.
When
April holds 7.7% of these deaths in MN; August holds the most, 19.2%. Thursdays: 15.4%.
April holds 8.9% of these deaths in the United States; January holds the most, 9.6%. Thursdays: 14.5%.
April holds 8.9% of these deaths worldwide; January holds the most, 9.5%. Thursdays: 14.5%.
How
Cardiac deaths account for 50% of all 2 deaths at Olmsted County Sheriff's Office, the most common cause.
Cardiac deaths account for 8.9% of all 293 deaths in MN, the 3rd most common cause.
Cardiac deaths account for 4.7% of all 27,552 deaths in the United States, the 4th most common cause.
Cardiac deaths account for 3.8% of all 34,103 deaths worldwide, the 4th most common cause.
His people
Olmsted County Sheriff's Office has 2 officers remembered here, Mark among them.
Where
Where the Name Is Cut
What is kept
Photographs, film, sound and papers — what survived a life.
Others Who Wore This Badge
1 officer from Olmsted County Sheriff's Office are honored on badge.nw.
