The accident happened around 10:00 a.m. at Lyons and Sons in the 700 block of 36th Street.
Police say Smith was loading chocolate into a vat where it's melted and mixed when he fell through an opening.
Investigators say Smith was caught up in the machinery mixing the chocolate. By the time his co-workers heard his screams and got to the vat, it was too late.
Smith was hit and fatally injured by the agitator that mixes the chocolate.
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