stepping up their search for a possible serial killer by bringing in dive teams and canine units. alan chernoff has been following this case. is there anything new that you can tell us? >> reporter: good morning, carol, well, the folk county police have been planning to get their dive team into the water on the other side of ocean parkway behind me. the small area called hemlock cove, but given the weather, they're not sure they're going to go in today. it is a very raw, windy, freezing day out here on long island right by the beach. they haven't made the determination just yet. as you mentioned, the police had been using canine units. they've been able to identify human remains, latest i.d. came on monday. they found human skull and the separate group of bones about a mile and a half away over in