CHARLOTTE, N.C. — One year after 23-year-old Ukrainian refugee Iryna Zarutska was fatally stabbed aboard Charlotte’s light-rail system, her family is taking the city and its private security contractor to court, alleging that a chain of longstanding security failures helped create the dangerous conditions surrounding her death. The wrongful-death lawsuit was filed in Mecklenburg County Superior Court against the City of Charlotte and Professional Security Services, the privat