Amber Costello's housemate, Dave Schaller, talks about some of the grim advice he gave Amber and her sister, Kim, about getting into escort work. He also speaks about not doing more to stop Amber on the last night she was seen alive.

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BONUS: Jaclyn Gallucci was one of the first reporters to write about the missing sex workers on Long Island and look into who they were as individuals. Jaclyn talks about why it was important to call attention to the victims, not just as nameless sex workers, but as women with lives, families and dreams. Jaclyn also talks about her own process in uncovering the facts of the case.

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BONUS: Dottie Laster, a counselor on human trafficking, shares a deeply troubling tale of coercion. Dottie also recalls speaking with Melissa Barthelemy's family and confirming that she had been forced into prostitution.

For more information about stopping Human Trafficking: https://traffickingvictimrescuecentral.org/

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BONUS: Excerpts from an interview with Former Chief of Detectives Dominic Varrone where he talks about his work on the Katie Beers abduction case, his methodology as well as what he hopes will come of the LISK case.

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Robert Kolker speaks with Chris about a host of topics surrounding the LISK case. From Robert's opinions on how Shannan disappeared to the current status of the investigation and a host of other insights, he offers unique perspective as someone who wrote a best-selling book that was eventually made into the Netflix movie "Lost Girls". Hosted by Chris Mass.

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Nearly a year and a half after Shannan Gilbert disappeared from Oak Beach, and with the body count climbing to 10, the search teams suddenly shifted back to the gated community, and a startling series of discoveries was made. More than ever, the victims families and the public wanted answers and a killer found. A dubious shift in Suffolk County politics though hindered the investigation. And a newly installed Suffolk County Chief of Police threw the hunt for a killer into even further disarray. Inspired by the bestselling book "Lost Girls: An Unsolved American Mystery" from Robert Kolker. Hosted by Chris Mass.

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When 27-year-old sex worker Amber Lynn Costello took a rare top-dollar outcall from her home in Babylon, Long Island, she was never seen alive again. Just over three months later, her body was among the four victims found along Gilgo Beach. This episodes follows the life of Amber Costello, from her childhood in North Carolina to her harrowing exploits in sex work, which eventually led to her death. Hosted by Chris Mass.

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When Maureen Brainard-Barnes and Megan Waterman's bodies were found on Gilgo Beach, it seemed that friends and family were the only ones who'd been looking for them. Authorities showed little concern for these missing women, presumably because they were sex workers. Only as part of the Gilgo Four did their names gain any real recognition. Why did it take their murders to make people take notice? This episode looks at the stories of two unique women who met similarly untimely fates. Based on the best-selling book "Lost Girls: An Unsolved American Mystery" by Robert Kolker. Hosted by Chris Mass.

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Melissa Barthelemy was the first of the "Gilgo Four" bodies found along the remote shores of Long Island. The discoveries unleashed a media firestorm and brought to light the Long Island Serial Killer case. Before the sensationalism, Melissa was a young woman with a family and friends who loved her. This episode tells the story about Melissa and the series of seemingly arbitrary events that eventually led to her murder. Inspired by the New York Times best-selling book and Netflix movie, "Lost Girls: An Unsolved American Mystery". Hosted by Chris Mass.

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Police uncover the bodies of the "Gilgo Four" while searching for Shannan Gilbert. But who was this woman whose disappearance blew the lid off one of the most baffling and active serial killer cases of our time? Episode two explores Shannan's backstory — her upbringing, her aspirations, and the unlikely way she found herself in the New York City underworld of escort work. Inspired by the New York Times best-selling book and Netflix movie, "Lost Girls: An Unsolved American Mystery". Hosted by Chris Mass.

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