New DNA evidence links Robert McCaffrey, 54, to the death of Lisa McBride in Vernon Township.
McCaffrey is also suspected in the disappearance of his wife, Marjorie, who vanished 12 years ago.
Her sister hopes McCaffrey's arrest in this case will lead to more charges.
McCaffrey has yet to be transferred to New Jersey.
McBride was found by a hunter four months after her disappearance in 1990.
----------
* Get Eyewitness News Delivered
* Download our connected TV app
* More local news
* Send us a news tip
* Download the abc7NY app for breaking news alerts on the go