Crime Solvers Central
CSC
263 Cases Solved. Advancing justice for missing persons, unsolved homicides, unidentified and unclaimed remains.
Diane Seidler missing person case profile photo

Diane Seidler Missing Person Case

Last seen in Long Beach, New York on Sep 05, 2017

Victim Details

Jan 27, 2026

Jan 27, 2026

Diane

Seidler

65

57

5'4 inches

120 lbs

White

Female

Sep 05, 2017

Long Beach

New York

Long Beach

Long Beach Police Departmen

516-431-1800

07/08/2026

Case Description

Any updates on this case? Let us know!
Diane Seidler, a 57-year-old woman, has been missing since she left her Long Beach, New York apartment in the early morning of September 5, 2017. At approximately 3:30 a.m., Seidler was seen on a security camera leaving her residence and did not return.

Following her disappearance, there was activity on her credit card in the Times Square area of Manhattan. These transactions occurred between September and mid-November of 2017. However, there has been no further activity on her credit c ...
MEMBER ACCESS

Continue reading the complete case summary

Unlock the full case narrative for Diane Seidler, all available source links, additional videos, and member discussions.

Unlock Full Case Access — $3.97/month
Cancel anytime.
Already a member? Log in

Last Seen: Sep 05, 2017

Links to Additional Sources (1)

See any mistakes? Let us know!
  • Presumed Located - NY - Diane Seidler, 57, Long Beach, 5 Sept 2017

    • Latest News

    View All

    Forum Posts (2)

    I’ve been following Diane Seidler's case and something doesn't add up with the credit card activit... ...Read More
    10/07/2025
    Does anyone else find it odd that Diane Seidler's credit card was used in Times Square for over two ... ...Read More
    08/12/2025
    MEMBER ACCESS

    Join the discussion for Diane Seidler

    Read full forum posts and contribute to this case discussion.

    Unlock forum access — $3.97/month
    Already a member? Log in

    Other Missing Cases from Long Beach, New York

    Rivera Nylah missing person case in Long Beach, New York

    Rivera Nylah

    Missing: Dec 21, 2024
    On December 21, 2024, Nylah Rivera, age 16, was reported missing from Long Beach, New York. Authorit ...Read More
    Kathleen Puglisi missing person case in Long Beach, New York

    Kathleen Puglisi

    Missing: Jan 27, 2025
    On January 27, 2025, 56-year-old Kathleen A. Puglisi was reported missing from her residence in Long ...Read More