A second American reportedly killed fighting with the Islamic State group in Syria has been identified as Abdirahmaan Muhumed, of Minneapolis, two sources told Fox News late Wednesday. KMSP-TV in Minneapolis reported that Muhumed was killed in the same battle as Douglas McAuthur McCain, who grew up outside Minneapolis in the town of New Hope and most recently lived in San Diego. The State Department confirmed McCain's death earlier this week, but spokeswoman Jen Psaki said Wednesday that the U.S. has no independent confirmation of the second American's death. "We're looking into it," she said. A source told Fox News...