U.S. Navy · United States 
Mark Cox
2018
Mark Allan Cox served the U.S. Navy.
How He Died
Manner
Natural
Cause
Myocardial infarction (heart attack)
What Happened
Deputy Sheriff Mark Cox suffered a fatal heart attack while conducting canine training on the 600 block of County Road 202 in Liberty Hill, Texas, at 10:00 am.
Deputy Cox was a U.S. Navy veteran and had served with the Real County Sheriff's Office for three years and had previously served with the Edwards County Sheriff's Office for five years. He had also previously served with a law enforcement agency in Florida.
Deputy Cox was a U.S. Navy veteran and had served with the Real County Sheriff's Office for three years and had previously served with the Edwards County Sheriff's Office for five years. He had also previously served with a law enforcement agency in Florida.
Survivors
He is survived by his wife and two children.
Service Record
U.S. Navy
Also Served
Real County Sheriff's Office
Deputy Sheriff
In Our Keeping
Permanent identifier
neuraspine_01krbxtqafyarggntb1d73h358
Record added
August 2, 2026
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Last updated
August 2, 2026
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