The Vietnam War veteran was convicted in 1989 of killing Robert and Zelda Vicha and their son Bobby.
Coble had previously kidnapped his then-wife, Karen Vicha, apparently distraught over their pending divorce.
He was released on bail before killing her family members nine days later.
At his execution, his son and grandson allegedly began swearing and kicking other people in the witness room, with Gordon Wayne allegedly pounding on the window of the chamber.
Officers intervened and took them outside where they were charged with resisting arrest and disorderly conduct.
Coble was once described by a prosecutor as having "a heart full of scorpions".
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