From the same article:
"Gilbert has a standing indictment in Hudson County as a co-defendant in a case concerning First Professional Referral Services, the escort service where she was allegedly employed, on charges of conspiracy and promoting prostitution, DeFazio said.
The main defendant, Joseph Ruis, was convicted of money laundering and sent to state prison on a five-year sentence, DeFazio said. Ruis has since been paroled.
DeFazio said if the remains are identified as hers the case will be dismissed against Gilbert, who was out on her own custody at the time she disappeared. DeFazio said that despite the indictment Gilbert was considered missing rather than a fugitive."
We had discussed Lace Party Girls but, IIRC, never the above agency. I can't tell from this article if the charges were in NYC or NJ. It said Hudson County.
NJ Court Records site is down but the one time I checked for any previous arrest for SG, it showed only a "Shannon" Gilbert and that is a male who was slightly older than Shannan Gilbert.