LOWELL — A driver for Stuart’s Automotive died on Sunday after suffering a medical emergency while operating a tow truck on the Lowell Connector. The deceased was identified as Mike Vandinter, 56, a father of two, according to one of his good friends, Rick Petitpas. Reports of a Stuart’s tow truck that had come to a stop in the middle lane of the Lowell Connector, near Exit 4, came in an emergency radio broadcast at about 12:35 p.m. A person who…