When Mark Contois took his son Caleb and some friends to play paintball to celebrate Caleb's 10th birthday, he never imagined anyone could possibly get hurt, especially after the game was over.
But as the children stood around breaking down the guns after the game, there was a loud bang, and Contois felt his wife Colette's head hit his shoulder.
"Her right eyes rolled back to the back of her head," he remembers. "I turned and screamed and we both fell to the ground."
As one of the young players was breaking down his weapon, the carbon dioxide canister that powers it unexpectedly separated from the gun and hit Colette Contois in the back of the head. She died instantly.
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