NEW CITY, N.Y. (AP) — A 66-year-old man has pleaded guilty to murder for beating his estranged girlfriend to death with a boot in her suburban New York home.

The Journal News reports (http://lohud.us/1ds0HYM ) that Riad Dib pleaded guilty Wednesday in Rockland County Court.

Ramapo police found Cecile Garbarino's battered body in her Wesley Hills bedroom on Jan. 25.

Police said Dib had called 911 after beating Garbarino over a 2½-hour period.

Dib's lawyers had planned a psychiatric defense before his guilty plea.

Dib is a Syrian national with a permanent resident card dated 2006. Prosecutors say he will likely serve more than 18 years in prison.

Garbarino's 29-year-old son, Michael, said his mother had been "healing" after enduring an abusive relationship with Dib.

Michael Garbarino is a sheriff's investigator in Chatham County, N.C.

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Information from: The Journal News, http://www.lohud.com