Mark Alan Wilson, a 52-year-old white male, died on February 24, 2005, in Tyler, Texas. Wilson was a Navy veteran and a resident of downtown Tyler. On the day of his death, Wilson heard gunfire erupting outside the Smith County Courthouse. He armed himself with a Colt .45 handgun and rushed to the scene to intervene. The gunman, David Hernandez Arroyo Sr., had opened fire on his ex-wife, Maribel Estrada, and their son, David Hernandez Arroyo Jr., over an alleged dispute about unpaid child suppor
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