The killing of Jocelyn Paniagua Gutiérrez in Alajuela has renewed concern over gender violence in Costa Rica, after relatives said the young mother had previously reported receiving death threats. Paniagua, identified by local media as 27 years old, was shot Thursday afternoon in Tuetal Norte de Alajuela, near a community hall where a Festival Estudiantil de las Artes event was taking place. She had gone to watch her 12-year-old daughter perform…