>> hello, everyone, i'm don lemon, live at the cnn world headquarters in atlanta. tonight a cnn newsroom special report, "long island serial killings." here's what we know. the identity unknown, the motive, unclear, the terror unfathomable. investigators this weekend have sealed off a long island beach, dumping ground, they believe for prolific serial killer or killers. at least eight women slaughtered, dumped like they meant nothing. and now we're learning of cruel, taunting phone calls to one of the victims' loved ones. we go to susan candiotti in a moment. but first tonight, her report. >> reporter: as investigators pick their way through twisted brush, dense weeds, and sand dunes, using divers offshore and high-tech imagery from the air looking for any sign of more victims, one thing's clear. it's a perfect spot to dump a body. >> you can pull off the to the side of the road, you can open up your trunk, take something