A mother of twins, a law student and a government worker were among the 31 people killed in Tuesday’s blasts at a Brussels airport and train station. The explosions wounded at least 270 people and left several more missing. The victims span 40 nationalities. Here is what we know of some of the victims:DeceasedAdelma Marina Tapia RuizA Peruvian mother said goodbye to her twin 3-year-old girls at the airport. Moments ...