People 2012 Robert Groden: The Plaza Man By Jim Schutze Thu., Jun. 28 2012 at 2:59 PM Dallas Observer http://blogs.dallasobserver.com/unfairpark/2012/06/robert_groden_people_2012.php In this week’s Dallas Observer, we profile 30 of the metro area’s most interesting characters, with new portraits of each from local photographer Mark Graham. See the entire Dallas Observer People Issue here On November…