Diane Seidler Missing Person Case

Jan 27, 2026

Jan 27, 2026

Diane

Seidler

66

57

5'4 inches

120 lbs

White

Female

In the early morning hours of September 5, 2017, 57-year-old Diane Seidler was seen on a security camera leaving her Long Beach, New York apartment. It was approximately 3:30 a.m., and she has not been seen or heard from since that time. At the time of her disappearance, Diane was described as a Caucasian female with graying black hair and blue eyes, standing 5'4" tall and weighing between 120 and 150 pounds. She was last seen wearing a dark-colored sweatshirt, sweatpants, and sneakers. Her departure in the middle of the night with no subsequent contact with family or friends sparked immediate concern and a long-standing investigation into her whereabouts. Following her disappearance, a perplexing trail of financial activity emerged. For a period of over two months, from September to mid-November of 2017, there were transactions on Diane Seidler's credit card. These transactions were all located in the bustling Times Square area of Manhattan, a significant distance from her Long Beach home. This activity provided a sliver of hope that she might be safe, yet also deepened the mystery as to why she would leave her life behind without a word. After mid-November 2017, all activity on her credit card abruptly ceased, leaving a void of information and an increasing sense of unease for those searching for her. The investigation into Diane Seidler's disappearance has been handled by the Long Beach Police Department, but few other details have been made public in her case. The period of credit card activity remains a focal point of the investigation, yet it has not publicly led to any definitive answers about what happened to her after she vanished. The sudden cessation of these transactions is as mysterious as her initial departure. The case of Diane Seidler is a story marked by a sudden and unexplained absence, a brief and enigmatic trail of financial clues, and a lingering silence that has left her loved ones without answers. Her disappearance continues to be a source of bewilderment and concern.

Sep 05, 2017

Long Beach

New York

Long Beach

Long Beach Police Departmen

516-431-1800

08/28/2026