Authorities say they're investigating a potential link between the 2009 disappearance of a 48-year-old New Jersey woman and a serial killer believed to have murdered nearly a dozen people.
The FBI said Israel Keyes, who was found dead of an apparent suicide in an Alaska jail cell last year after he was arrested in the killing of an 18-year-old barista, had admitted to abducting a woman from a state on the East Coast on April 9, 2009, and transporting her over multiple state lines into New York before killing and burying her upstate.
Authorities believe Debra Feldman, who was last seen April 8, 2009 at her home in Hackensack, may be the victim Keyes described to authorities. Her body has never been recovered.
Investigators ask anyone who knew Feldman or may have information about her activities around the time of her disappearance to call 1-800-Call-FBI and follow the prompts for the Keyes case.
Keyes was arrested in Marsh 2012 for the murder of Samantha Koenig, a barista in Anchorage, Alaska. While in custody in Alaska, Keyes told investigators that he had kidnapped and murdered victims throughout the country during a crime spree that began in 2001.
He was found dead in his cell last December.
Authorities believe Keyes committed at least 11 murders between 2001 and his 2012 arrest. He lived in Washington from 2001 to March 2007, at which time he moved to Alaska. He traveled as a general contractor in Alaska, during which time he told investigators planned meticulously for the murders he would commit.
Investigators believe he did not know any of his victims prior to abducting them. He described several remote locations that he visited to look for victims, including parks, campgrounds, cemeteries and boating areas. He also admitted to frequenting prostitutes during that time, though it's not known if they were among his victims.
Keyes told investigators he killed both men and women, and they ranged in age from teenagers to the elderly. He also said that prior to the murder of a husband and wife in Vermont in 2011, his victims' disappearances hadn't received much media coverage. He said he killed people in fewer than 10 states, but didn't say where all of the bodies had been dumped.