DNA testing

More Possible Human Remains Unearthed In WTC DebrisAbout 60 truckloads - or 600 cubic yards - of debris that could contain tiny human bone fragments have been unearthed by construction crews working on the new World Trade Center tower in recent years. Investigators will spend 10 weeks trying to find remains in that debris.
Suffolk County Police Getting Tips In L.I. Serial Killer Case Since Releasing Sketches Of Victims Police say 22 tips have come in since the sketches were released on Tuesday.