How deported MS-13 gang members sneak back into the US

MS 13 DACA Dreamer

The deported MS-13 gang member who was caught back in Long Island this week snuck into the US over the southern border — and may have had help from ganbangers in Suffolk County, law enforcement sources told The Post Friday.

William Umberto Martinez Chavez, 40, was first kicked out of the country back in 2017 for a fatal 2000 stabbing — but was found in Huntington on Tuesday morning and arrested by Immigration and Custom Enforcement agents for illegal reentry.

Investigators don’t think he crossed into the States at an official port of entry — because he was not interviewed by border patrol officers and would’ve been denied entry if he had been due to his previous deportation, sources say.