Rex Heuermann's daughter says she believes her father is most likely the Gilgo Beach killer, according to a newly-released documentary.

Victoria Heuermann told the producers of the Peacock documentary series “The Gilgo Beach Killer: House of Secrets” her thoughts a week before the series' release.

“Victoria’s feelings and emotions have evolved since July of 2023. We have spent a good amount of time with her explaining the evidence and how it was extracted,” said Robert Macedonio, the Heuermann family attorney.

Heuermann, who was arrested in July 2023, previously pleaded not guilty to the killings of all seven victims, including "The Gilgo Four" and three others.