Deborah “Big Red” Cotton and I met by getting shot together. It was a Mother’s Day afternoon during Barack Obama’s second term as America’s first Black president. We were two of 19 people gunned down in the biggest mass shooting in the modern history of New Orleans, a city stained by racism and violence since its time as the biggest slave market in North America. The shooting targeted a second line parade, an iconic local ritual that evolved from the burial rites enslaved Africans brought with...