The Gilgo IV

Shannon Gilbert, 24, was last seen running from the small seaside community of Oak Beach over a year ago. Just down the road from where Shannon disappeared, four other women were found in burlap sacks. The victims became known as the Gilgo IV. It didn't take long for detectives to find some common links between them all. All had ads on Craigslist. A lot of them had drug problems. They were victims before they ever set foot on the street. And it was a circumstances that led them.