Taxing Long Island
News12 New York
Download the App
Where to Watch
Local
Crime
Weather
beWell
The East End
Crime Files
Stony Brook Medicine

More Stories

After more than four decades, authorities have finally identified the body of a teenage girl found in a dumpster in Freeport in 1982. The breakthrough in this cold case came through the use of investigative genealogy, a growing tool in law enforcement.

The victim has been confirmed as Susan Mann, a 15-year-old girl from Hollis, Queens, who went missing in 1980. Her identity was unknown for over 40 years, and until now, she was referred to only by investigators and local media as the “mummy” girl, a name stemming from the condition in which her body was found.

The body was discovered in a dumpster near Cantor Glass Works, close to the intersection of North Main Street and Mt. Joy Avenue. At the time, Nassau homicide detectives even enlisted the help of the American Museum of Natural History in their efforts to identify the victim.

Now, police have released Susan Mann’s photo along with an image of the necklace she was wearing when her remains were found. Officials are hoping the release will spark memories and bring forward new information that could finally explain what happened to her.

Retired NYPD Detective David Sarni praised the role of investigative genealogy in cracking the case. This method involves matching DNA profiles with genealogical databases that are growing as more individuals voluntarily submit their genetic information.

Genealogy provided the missing piece of the puzzle - a name to go with the unidentified body found over 40 years ago. But the case is far from closed. Police are now asking the public for any information that could shed light on Susan Mann’s death.

An article from 1980 referenced efforts to find Mann while she was still missing, mentioning a possible clue that may have been found in her purse. That lead never led to her discovery, until now.

“Detectives want to find the truth, and they don’t want to close cases based on lack of evidence,” said Sarni. “This is beneficial to all of us.”

Anyone with information about Susan Mann’s case is urged to contact Nassau police.

More Stories

Top Stories

newark bay

Dead whale found floating in busy Newark Bay

02:13
LD WEEKEND

Pleasant spring sunshine for New Jersey, big warm up coming next week

NOLAN SCREENSHOT

Driver in fatal Toms River crash issued multiple summonses as investigation continues, prosecutor says

00:23
JeopardyGuyAM_2026-04-10-10-36-47

Lawrenceville native Jamie Ding chases Jeopardy history with 21st straight win

00:31
HelicopterStorySubAM_2026-04-10-10-04-42

Lawmakers push tougher sightseeing helicopter rules, commemorate Hudson River tragedy 

00:24
BigMistakesWatchPartyAM_2026-04-10-10-17-12

Edison hardware store gets Netflix spotlight with free watch party for Dan Levy series

02:15
Screenshot 2026-04-10 072825

Residents in Middlesex County frustrated due to large crack leading to months long street closure

00:23
deadly crash investigation

Piscataway woman killed, 3 injured in deadly I‑80 crash in Wharton

00:52
AP26097509348086

Artemis II's grand moon finale is almost here with a Pacific splashdown to cap NASA's lunar comeback

00:21
AP23059525541475

New Jersey invests $7.3 million to upgrade runways, lighting, and safety at local airports

02:03
Screenshot 2026-04-10 052353

Route 1 reopens after overnight crash disrupts early commute in Middlesex County

00:19
CANNABIS_2026-04-10-05-29-41

New Jersey expands support for small cannabis businesses with new $15 million loan fund

02:13
REchristinefwc48_2026-04-08-22-14-21

NJ Transit commuters to be blocked from trains on FIFA game days

00:29
410vitaminrecall_2026-04-10-09-07-51

More than 350,000 iron-containing supplements recalled for lacking child‑resistant packaging

01:45
REAmandafire49_2026-04-09-22-15-08

3-alarm fire in Ironbound section of Newark rips through warehouse

02:15
REcamdendnajim_2026-04-09-17-31-50

DNA advanced technology helps solve two cold case murders in Camden County 

02:39
Screenshot 2026-04-09 125952

SD Jewelry in Perth Amboy was wiped out of $1M in merchandise following a smash-and-grab

01:41
REEastorangesos_2026-04-09-22-17-11

East Orange City officials crack down on illegal basement apartments

PLAINSBORO MUG FULL

West Windsor man exposed himself, peered into Plainsboro apartment window, police say

01:44
RETomufc49_2026-04-09-22-18-59

From Lacey High to the UFC: Luke Fernandez fights for New Jersey

App StoreGoogle Play Store

info

Newsletter

Send Photos/Videos

Contact

About Us

News Team

News 12 New York

follow us

Twitter

Facebook

Instagram

more resources

Optimum Corporate

Optimum Service

Advertise on News 12

Careers

Content Removal Policy

© 2026 N12N, LLC

Privacy Policy

Terms of Service

Ad Choices