Asa Ellerup once insisted her husband was innocent. Then her ex-husband, Rex Heuermann, confessed - to her face - that he killed eight women. The journey from fierce defender to reluctant believer played out across Peacock's docuseries The Gilgo Beach Killer: House of Secrets, which concluded with its fourth and final episode on April 23, 2026. The series gave an inside look at how Heuermann's family processed his guilty plea in connection to eight killings. On April 8, 2026, Heuermann pleaded guilty to murdering seven women and admitted to killing an eighth.