What we know after officials say ICE detained a US citizen and left him injured in Chicago suburb

By Julianna Bragg, Rebekah Riess, CNN (CNN) — Days after local police said Immigration and Customs Enforcement agents detained a US citizen in Evanston, Illinois, and left him injured on the ground, questions are swirling about what happened during the targeted enforcement operation gone awry — and the circumstances under which federal immigration…