Tom Grosspietsch, a well-known figure on Chicago's rollerblading scene, has died at 66

Tom Grosspietsch was Chicago's shepherd on wheels. His flock — the Windy City Skaters, a group that came together nearly two decades ago to share a love for rollerblading, also known as inline skating. Mr. Grosspietsch — pronounced like Gross Peach — collected his herd of several dozen riders under the gaze of the Picasso in Daley Plaza every other Friday during the warmer months to lead its most cherished ritual: Friday Night Road Raves. After a quick rundown of the rules — helmets were a…