His name is Wuilly Arteaga, he is 23 years old, and he’s been missing since July 27th when the National Guard (la Guardia Nacional Bolivariana) detained him. His brother has come forward to say that Wuilly is being tortured and that the guard has burned him and beaten him with his own violin so severely that he has lost hearing in one ear. As of now there is no news on when or whether he will be released.
sources: http://www.el-nacional.com/noticias/presos-politicos/denuncian-que-wuilly-arteaga-han-quemado-partes-cuerpo_198559 (in spanish)