An “administrative error” that led to a Maryland man being deported to a brutal prison in El Salvador as part of Donald Trump’s immigration policy has thrust Kilmar Armando Abrego Garcia into the national spotlight.

His legal presence in the US was based on a protection known as “withholding of removal,” which was granted by an immigration judge in 2019. That status is awarded when a judge determines that deporting someone would expose them to persecution or torture in their home country.

Judge Paula Xinis directed the federal government to return Kilmar Armando Abrego Garcia back to the U.S. by Monday, April 7, at 11:59 p.m.