The family of a Nicaraguan asylum-seeker who died from an undiagnosed blood clot is suing the operator of a privately run Aurora detention center that they say ignored his pleas for help following a pattern of preventable detainee deaths. Dorling Peralta Rivera, wife of Melvin Ariel Calero Mendoza, and their two children say Mendoza languished inside the Aurora Contract Detention Facility as he tried at least three times to get treated for severe pain in his right leg. On Oct.