Martavious Taveros Johnson Homicide Martavious Taveros Johnson 17 YOA 511 Sumner Street Waterloo, IA Black Hawk County Thursday, January 5, 2012 Case Summary by Jody Ewing Black Hawk County in Iowa Waterloo in Black Hawk County Martavious Taveros “Tay Tay” Johnson, a 17-year-old former football player for East High School in Waterloo, was shot in […]