Shannan Gilbert , 24 , of Jersey City , New Jersey met with one final John in over a year before she disappeared for good . Police searched for May 2010 for the sex worker 's body and in doing so uncovered a mass grave for some 10 other slain prostitutes 3 miles away . Gilbert 's mother and some experts believe her death came at the hands of Long Island 's elusive Gilgo Beach Craigslist killer . However , police disagree and saw Gilbert died after fleeing the home of her last customer and possibly drowning in a nearby marsh .
Shannan Gilbert , 24 , of Jersey City , New Jersey met with one final John in May 2010 before she disappeared for good . Police searched for over a year for the sex worker 's body and in doing so uncovered a mass grave for some 10 other slain prostitutes 3 miles away . Gilbert 's mother and some experts believe her death came at the hands of Long Island 's elusive Gilgo Beach Craigslist killer . However , police disagree and saw Gilbert died after fleeing the home of her last customer and possibly drowning in a nearby marsh .