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Acting US Attorney General Todd Blanche on Friday said that a man who made death threats against a U.S. Immigration and Customs Enforcement officer and his family at a protest in New Jersey Thursday night had been arrested.

The arrest came just hours after Blanche promised the protester, who was captured on video, would be found and arrested.

"That’s a federal crime ," Blanche said on Fox News’ "The Will Cain Show" on Thursday. "Not only threatening the ICE officer — but think about how disgusting this individual is by threatening his wife and his children with death.

In the video, the protester can be heard taunting the officer: "I will kill your whole f---ing family . Your whole f---ing family is dead. Your children and wife all dead. I have your face mother---er!…