The family of accused Gilgo Beach serial killer Rex Heuermann has gotten a helping hand from an unexpected source: The daughter of a notorious jailed murderer.

House of Secrets” takes viewers inside the Massapequa Park home of alleged serial killer Rex Heuermann. And for the first time, both Heuermann’s estranged wife and his daughter discuss the case, highlighting a difference of opinion on the question of the New York City architect’s guilt.

NEW YORK (AP) — The daughter of accused Gilgo Beach serial killer Rex Heuermann believes he “most likely” committed the infamous killings in New York even as her mother steadfastly defends her ex-husband’s innocence in a new documentary released Tuesday.