MINNEAPOLIS — Ahmednur Ali's family fled the chaos and violence of their East African homeland Somalia in the 1990s, eventually making their way to Minnesota like thousands of their compatriots. While many of the estimated 32,000 Somalis who settled in the state have struggled to adapt, Ali flourished. By age 20, he had blazed a path to Minneapolis' Augsburg College, where he played soccer, studied political science and aspired to a political career modeled on President Barack Obama's. He was shot and killed last September outside a busy community center where he worked part-time as a youth counselor, and prosecutors...