November 07, 2016 11:12 AM

To so many people, Shannan Gilbert is only remembered for how she died: Alone, exposed, vulnerable and apparently fleeing danger on the outskirts of Gilgo Beach on Long Island, New York.

It was the police search in her disappearance that led to the discovery of at least 10 other bodies in the Gilgo Beach area, launching the hunt for a serial killer and forever tying her fate to theirs.

But Gilbert was more than that: And her life — full of promise, but with challenges and heartache — is reexamined in the series premiere Monday night of PEOPLE’s new true crime series, People Magazine Investigates, on Investigation Discovery.

• Watch our new 10-part true crime show, People Magazine Investigateswhich debuts with the two-hour season premiere “The Long Island Serial Killer” on Monday, Nov. 7, at 9 p.m. ET on Investigation Discovery 

Gilbert is not just a part of the Long Island Serial Killer case. She was a gifted high school student who graduated early. She wanted to be a singer. She moved closer to New York City and auditioned whenever she could. She had dreams.

Gilbert struggled, too: She began escorting to make money, and a romantic relationship with her escort driver soured and turned violent. Before her 25th birthday, she would be dead.

• Watch the People Magazine Investigates After Show, available Nov. 7 on the new People/Entertainment Weekly Network (PEN). Go to, or download the PEN app on Apple TV, Roku Players, Amazon Fire TV, Xumo, Chromecast, iOS and Android devices

People Magazine Investigates takes a deeper look at her life, her loves and her family in its series premiere. The two-hour special explores the case of the Long Island Serial Killer and its many mysteries, including the victims and all they left behind.

People Magazine Investigates premieres Monday (9 p.m. ET) on Investigation Discovery.

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