The Trump administration had celebrated the prosecution of an alleged MS-13 mastermind. Moises Rivera-Luna, also known as "Viejo Santos" or "Old Saint," is accused of ordering murders in the US from a jail cell in Salvador more than a decade ago. He was tried before a federal jury twice in five months, but both times the jury failed to reach a verdict.

Rivera-Luna is the type of defendant the Trump administration has sought to convict. Further details about the case and its outcome are available from the source. The Justice Department's efforts to prosecute Rivera-Luna have not been successful so far.