An Edwardsville law firm obtained a verdict of more than $8.4 million last month in St. Louis against Ford Motor Co. on behalf of a former mechanic exposed to asbestos in auto parts.Alfred Bennett and his wife will recover more than $6.9 million after a roughly $1.4 million reduction to account for defendants who settled prior to trial, according to court documents.After a nine-day trial in St. Louis before Missouri 22nd …