The Long Island Serial Killer: A Mother’s Hunt for Justice

Mari Gilbert’s search for her missing daughter, Shannan, uncovers the work of a serial killer.

Movie
Trailer

Kim Delaney Mari Gilbert

Katharine Isabelle Shannan Gilbert

Eugene Clark "Herc" Zinneman

Patrick Sabongui Actor

John Cassini Actor

Stefanie von Pfetten Actor

Jason Gray-Stanford Actor

Lossen Chambers Actor

John Pielmeier Screenwriter

Deborah Norville Executive Producer

Elizabeth Stephen Executive Producer

Stanley M. Brooks Director

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