Lucas John Helder also known as the Midwest Pipe Bomber, is an American domestic terrorist and former University of Wisconsin–Stout student from Pine Island, Minnesota.

Pine Island is a city in Goodhue and Olmsted counties in the U.S. state of Minnesota. Most of Pine Island is in Goodhue County, but a small part extends into Olmsted County, making that portion part of the Rochester metropolitan area. As of the 2020 census, the population was 3,769.