U.S. Marine Corps · United States 
John A. Rusnak
1977
John A. Rusnak served the U.S. Marine Corps for 3 years. John served in the Vietnam War and the Cold War.
How He Died
Manner
Accident
Cause
Multiple traumatic injuries
What Happened
Investigator John Rusnak was killed when his unmarked vehicle was struck from behind by a pickup truck while he was traveling southbound on the Tri-State Tollway in Alsip. Investigator Rusnak was about to meet with other officers from his unit to do surveillance on a suspect's home when his vehicle was struck. His vehicle was spun around and pinned against a guardrail. The pickup truck rolled several times after the initial impact, coming to rest on top of Investigator Rusnak's vehicle before both vehicles burst into flames. Investigator Rusnak died due to the fire and massive internal injuries. Investigator Rusnak had served with the Cook County Sheriff's Police Department for 11 years.
Survivors
He was survived by his wife, daughter, son, parents, sister and grandparents.
Service Record
U.S. Marine Corps
1962 – 1965
Conflicts
Vietnam War
Cold War
Also Served
Cook County Sheriff's Police Department
Investigator
In Our Keeping
Permanent identifier
neuraspine_01krbxtpqc9sye1382hh64d5sm
Record added
August 2, 2026
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Last updated
August 2, 2026
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