Brian Ernst / Sun-Times A former video store three blocks south of the Chicago Ridge police station, revived as a video gaming bar, has gotten caught up in two federal criminal investigations in the past three years. As Terry Ferguson and his son Timothy Ferguson were working on converting the shuttered video store into a bar, he already was the target of a sting operation in which a federal agent bought guns from a food truck owned by Ferguson, who also had been peddling cocaine. Ferguson’s arrest in October 2018 ultimately led to the end of his son’s dream of opening the bar.