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Sterling Heights, MI - The worker spreads the cleaning fluid at 7:18 p.m. He knocked over a canister with gasoline inside at 7:22 p.m. When he rights the container and walks away, the gasoline spreads all across the floor. He continued working, and when he ran his cleaning machine right through the gasoline puddle, it sparked a fire. That fire spread into the blaze that caused millions of dollars in damage.