Pete Buttigieg returns to South Bend amid tension over police shooting

* Mayor will attend peace walk and event for Eric Logan* Democratic candidate faces questions over race relationsPete Buttigieg speaks to Shirley Newbill, mother of Eric Logan, in South Bend on 19 June. Photograph: Michael Caterina/APPete Buttigieg returned to South Bend on Saturday to attend events in memory of Eric Logan, an African American man shot dead by a white police officer in the small Indiana city.It was the Democratic presidential candidate’s first visit to the city he runs as