MARK C JOHNSTON
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Officer Rank: Special Agent
Memorial Panel: 9-E: 31
Department: Federal Bureau of Investigation
End of Watch: September 12, 2017
Cause: PHYS
Age: 65
Years of Service: 23
Description: Special Agent Johnston, of the Newark, New Jersey division, responded to the World Trade Center in the aftermath of the terrorist attack on September 11, 2001. Agent Johnston was assigned to Ground Zero and was exposed to significant amounts of debris. Agent Johnston died of cancer of the bile duct on September 12, 2017.
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