but first, long island s serial killer. that s how we know that we re dealing with a monster, a hannibal lector. beautiful homes, mysterious murders. four of the victims were pound in a burlap type material. larson traces the trail of a serial killer still on the loose. this is babylon, long island. it s an hour s drive away from manhattan and it s known for beautiful million dollar homes and secluded beaches. but that same isolation that people come here to seek, as of late, has been masking a darker element. in december policing on long island make a shocking discovery. i don t think it s a coincidence that four bodies ended up in this area. for the past couple of years, women kept disappearing on long island. now, police think they may know why. we could have a serial killer. we are dealing with a psychotic murderer. police still don t have answers, so we tried to get to the bottom of this eerie mystery. where are we going now, gus? gus, a man neigh