WINONA, Minn. – A pedestrian crossing the Mankato Avenue roundabout to the hospital on foot was struck by a light truck. Brenda Lee Dienger, 62, of Winona, got up and said a knee hurt, but after talking with police, she continued on foot to the hospital, where already head an appointment. Dienger said she had pressed a pedestrian button to start a flasher to alert drivers but it didn’t work. A witness conformed that te flasher wasn’t operating. The truck driver, Nutuam Cody Xiong, 53, of New Ulm, was moving slowly through the tight roundabout and sad he didn’t see Dienger