RAYMONDVILLE — Juan Rodriguez stood outside the El Valle Detention Center and watched as U.S. Rep. Monica De La Cruz escorted Antonio Gámez-Cuéllar, a McAllen teenager who had been detained there for 12 days.Rodriguez was one of several demonstrators protesting Gámez-Cuéllar’s detainment. He took an interest in the teenager's case because his fiancée is being held in the same facility and has a similar legal status.The Gámez-Cuéllar family’s surprise detainment sparked nationwide outrage, propelled by the fact that they were detained while complying with a requirement to check in with the government — and because the brothers were part of ...