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.

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.

The daughter of Rex Heuermann, the accused Gilgo Beach serial killer, told a new documentary she believes her father “most likely” responsible.