. >> another gilgo beach victim, who has since been identified is karen vergara, a 34 year old escortg in 1996. none of them have been tied to heuermann. >> prosecutors have no doubt. they say rex heuermann is their guy is the serial killer. they've charged him now with seven murders. and i would expect that if they can build the evidence, they will charge him with more. >> do you suspect that there's more bodies? >> i absolutely think, sadly, that there will be many more victims associated with this case. >> our thanks to austin. for more on this story, watch the full episode of impact! by nightline. gilgo beach murders a serial killer's secrets, now streaming on hulu. when we come back, we're one on one with the scam goddess tracking down flim flam artists across the country, including one fraudster who built an entire town. >> shopping, working and relaxing online can attract various digital threats to improve your protection against them. just turn on nordvpn. this cyber security app will block web trackers and malware infected sites. it will also encrypt your internet traffic wit