Shannan Gilbert's disappearance is one of the most consequential missing persons cases in recent American history. She is the reason the Gilgo Beach serial killings were uncovered — and yet investigators have never concluded that she was a victim of the same killer. Her death remains the biggest unresolved question in the case.
What follows steps through her final confirmed hours, as the public record tells them. The scene below is an evocation of that night, not a reconstruction: a dark marsh, a row of porch lights, and the places we know she was.
Oak Beach, NY AROUND MIDNIGHT
Around midnight, 23-year-old Shannan Gilbert travels from New Jersey to the gated community of Oak Beach, on the south shore of Long Island, to meet a client, Joseph Brewer. Her driver, Michael Pak, waits outside.
She was working as an escort and had arranged the meeting through Craigslist. It was ordinary work on an ordinary night, on a narrow strip of land between the highway and the marsh.
The 911 call 4:45–4:51 AM
Between roughly 4:45 and 4:51 a.m., something changes dramatically inside Brewer's home. Shannan places a frantic 911 call that lasts approximately 23 minutes.
She never clearly identifies who “they” are, and at times she refuses help from the people trying to assist her. Only portions of the recording have ever been publicly released. The full call has never been heard in its entirety.
“They’re trying to kill me.”
Shannan Gilbert, on the 911 call
The flight MOMENTS LATER
Immediately afterward, Shannan flees Brewer's house barefoot and runs through the quiet Oak Beach neighborhood, away from the house and away from her driver.
The community is small — a huddle of homes behind a gate, porch lights spaced far apart, and beyond them nothing but reeds.
First door BEFORE DAWN
She pounds on the door of neighbor Gus Coletti, screaming for help. He lets her briefly into his house — and then, before police arrive, she suddenly runs back outside and continues through the neighborhood.
Coletti later described her as terrified but physically unharmed.
Last confirmed sighting BEFORE DAWN
She next reaches the home of another resident, Barbara Brennan, and again asks for help. Before assistance arrives, she runs away once more.
This is the last time anyone confirms seeing Shannan Gilbert alive.
The marsh EARLY MORNING
Police respond and search the neighborhood, but they cannot find her. Behind the homes lies dense marshland — reeds taller than a person, mud, and tidal wetlands.
Somewhere out there, in the last dark hour before dawn, Shannan effectively disappears.
What followed
The hunt for one missing woman became one of the largest serial murder investigations in U.S. history. Shannan was the last of them to be found.
The search 2010
Oak Beach physician Peter Hackett phones Mari Gilbert. According to Mari, he claimed he had treated Shannan and said he ran a home for troubled women. Hackett later denied knowing Shannan at all. Phone records confirmed the calls happened, but investigators never found evidence placing Shannan inside his home that night. The contradiction fueled years of speculation.
Summer–Fall 2010
Shannan remains missing. Police begin working the marshland behind Oak Beach and the brush along Ocean Parkway.
The discoveries 2010–2011
A Suffolk County police officer and his K-9, searching for Shannan, discover human remains near Gilgo Beach. The body is not hers. It is Melissa Barthelemy, missing since 2009.
The search expands, and police locate three more victims nearby: Maureen Brainard-Barnes, Megan Waterman, and Amber Lynn Costello. The four become known as the Gilgo Four.
Additional searches uncover several more sets of remains along Ocean Parkway. What began as one missing persons case becomes the Gilgo Beach — or Long Island Serial Killer — investigation.
Finding Shannan 2011–2012
Nearly 19 months after she disappeared, Shannan's remains are found in the marsh, roughly half a mile from where she was last seen. Unlike the serial killer's victims, she was not wrapped in burlap and not placed beside Ocean Parkway. She was in the marsh itself.
The Suffolk County Medical Examiner concludes the likely scenario is accidental drowning and/or exposure after entering the marsh in a state of panic, and states there is no evidence she was murdered.
2012
The Gilberts hire forensic pathologist Michael Baden, who conducts an independent examination and argues the missing hyoid bone and other neck findings are more consistent with strangulation than accidental death. Authorities disagree, maintaining there is insufficient evidence to call it homicide.
The years since 2022–2026
2022
A reconstituted Gilgo Beach task force reexamines the broader investigation.
Heuermann is charged — and since then charged again and again — with murders connected to the Gilgo Beach victims. He has never been charged in Shannan Gilbert's death. Investigators continue to state they do not believe her death is connected to his murders. Many observers remain unconvinced.
Unresolved
Sixteen years on, the record still cannot answer the only questions that matter.
01
Whether she was fleeing a real threat, experiencing a mental health crisis, reacting to drugs, or some combination remains unknown. Only portions of the 911 call have ever been released.
02
She ran from neighbors, from her driver, and from every opportunity for safety, which has led investigators to suspect a state of paranoia or extreme fear. No one knows what she believed was behind her.
03
Officially, no. But the search for Shannan uncovered one of the largest serial murder investigations in U.S. history, and her death remains its biggest unresolved question. The debate has never fully subsided.
Every discovery at Gilgo Beach traces back to the search for Shannan. When she was finally found in December 2011, she was in the marsh itself — not wrapped in burlap, not laid beside Ocean Parkway like the victims her search uncovered. Officially her death is unconnected to the murders. Circumstantially, the debate has never ended.
To see where her story sits among the others, visit the interactive Long Island case board.
The scene on this page is an evocation, not a reconstruction. Locations are abstract, times outside the 911 call are approximate, and nothing here depicts Shannan herself — only the places the record says she was, and the light she deserves to be remembered by.
Made with care for Shannan and her family.
Citations
The reporting and research this page draws on.
The Long Island Murders — interactive case board
Shannan's place among the wider Gilgo Beach investigation, on the map.