ICE arrested former minor league catcher Juan Miguel Castillo in Boston on January 15, 2026, in a fentanyl trafficking case with public health stakes.
The ICE arrest is part of the agency’s “worst of the worst” initiative in New England targeting criminal noncitizens.
Castillo remains in custody as an unlawfully present immigrant and faces charges involving 10 grams or more of fentanyl and two counts of assault and battery.
That quantity triggers mandatory minimums under federal law and is described as potentially lethal to thousands.
Born in Santo Domingo, he played seven seasons in the Cardinals and Royals systems with two mid-season All-Star selections.
Boston remains a focal point for immigration enforcement amid elevated at-large ICE arrests in 2025.
