Sept. 10 (UPI) -- Federal prosecutors have charged a 34-year-old homeless man with murder for allegedly killing a Ukrainian refugee on public transit in Charlotte, N.C., last month. Decarlos Dejuan Brown Jr. was charged Tuesday with one count of committing an act causing death on a mass transportation system and faces a statutory maximum sentence of life in prison or death, if convicted. Prosecutors allege that Brown stabbed Iryna Zarutska, 23, to death on a Charlotte light-rail train the night