An active-duty soldier at Fort Leavenworth intervened in an active shooter situation Wednesday morning on Centennial Bridge in Leavenworth, Kansas, and “saved countless lives.”Leavenworth police chief Patrick Kitchens said they initially received a multiple-shots-fired call around 11 a.m. from the bridge and believed the case to be road rage. But after further investigation, police found it was an active shooter situation with a suspect randomly