NEW BRUNSWICK, NJ - An Old Bridge woman has been charged with murder and sexual assault in the death of a 70-year-old township woman, Middlesex County Prosecutor Andrew C. Carey and Chief William Volkert of the Old Bridge Police Department said Thursday.

Caroline Beckert, 40, of Old Bridge was arrested and charged with first-degree murder, aggravated sexual assault in the first degree, and possession of a weapon for an unlawful purpose in the second degree in the murder of Joann Cullinan, 70, of Old Bridge.

Police responded to the Glenwood Apartments after they were alerted that the victim was found dead in her home. Cullinan was pronounced dead at the scene.

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The results of an autopsy are pending by the Middlesex County Medical Examiner’s Office to determine the exact cause of death, the county prosecutor said.

Beckert is being held in the Middlesex County Adult Corrections Center pending her initial court appearance scheduled for Friday in New Brunswick Superior Court.

The investigation is active and is continuing. Anyone with information is asked to call Detective Michael Cronin of the Old Bridge Police Department at (732) 721-5600, or Detective Erik Larsen of the Middlesex County Prosecutor’s Office at (732) 745-3263.