Immigration and Customs Enforcement agents have captured a criminal alien murderer weeks after Massachusetts authorities granted him parole for the 2006 murder of his pregnant girlfriend, state prison officials told local media.

Cesar Polanco, 59, received a life sentence for the beating murder of Judith Guevara, a 25-year-old mother of two.

Her death was ruled a homicide by “blunt force trauma and aspiration of blood.”

He was “unable to fully articulate a motive for the murder” or why he had become so enraged.

ICE agents knock on the door of a residence during a multi-agency targeted enforcement operation in Chicago on Sunday, Jan. 26. (Christopher Dilts/Bloomberg via Getty Images)

“He presented as having very little insight as to why he took the victim’s life,” the parole board found after his first hearing. “His explanation of the offense is inconsistent with the evidence of injuries sustained by the victim.”

Despite opposition from Essex County prosecutors, the parole board approved a home release plan that would require Polanco to keep a job, stay sober and avoid contact with Guevara’s family. But the board also agreed to respect an ICE detainer, and Polanco remained in custody until agents picked him up Friday.

His current whereabouts were not immediately clear. ICE did not immediately respond to a request for comment.

Polanco’s attorneys for the parole process came from the Harvard Prison Legal Assistance Project, a student organization at Harvard Law School that works with inmates accused of violating prison rules, parolees facing revocation and second-degree murderers seeking parole.