Crime Solvers Central
CSC
254 Cases Solved. Advancing justice for missing persons, unsolved homicides, unidentified and unclaimed remains.

Case Description

Any updates on this case? Let us know!
Sergey Koltsov, a 22-year-old man, went missing on July 25, 2014, from Seattle, Washington. At the time of his disappearance, Sergey was described as being 6 feet tall, weighing approximately 140 pounds, with brown hair. He was last seen in the Seattle area, but there has been limited information regarding the circumstances surrounding his disappearance, which remains unsolved.

Investigations into his case have faced challenges typical of cold cases, such as the lack of concrete evidenc ...Read More
Last Seen: Jul 25, 2014

Links to Additional Sources (1)

See any mistakes? Let us know!

Victim Details

Nov 06, 2014

Jan 12, 2024

Sergey

Koltsov

32

22

72 inches

74 inches

140 lbs

160 lbs

White / Caucasian

Male

In the summer of 2014, a young man named Sergey Valerievich Koltsov vanished from Seattle, Washington, leaving behind a void of information and a family searching for answers. The date of last contact with the 22-year-old was July 25, 2014. At the time of his disappearance, Sergey was described as a White male, standing between 6 feet and 6 feet 2 inches tall, and weighing between 140 and 160 pounds. He had a full head of light-brown, wavy hair that he wore in a short to medium length, and deep-set hazel eyes. He may have also had a light beard. When he was last seen, he was known to prefer military-grade clothing and wore black and white Converse high-top sneakers. Friends and family also knew him by the nickname Adam Lake. The circumstances surrounding Sergey's disappearance remain largely unknown, as official sources provide no specific details about what might have led to him going missing. The Seattle Police Department was notified of his disappearance four days after his last contact, on July 29, 2014, and subsequently opened an investigation. His case was later entered into the National Missing and Unidentified Persons System (NamUs) on November 6, 2014, bringing national attention to his case. The official report lists his last known location as being within the 98104 zip code of Seattle, in King County. Years have passed since Sergey Koltsov was last seen or heard from, and his case has grown cold. The lack of new leads or information has made the investigation challenging for the Seattle Police Department. Despite the passage of time, the case remains open, a silent testament to a life interrupted. The official record offers no narrative of his final days or any indication of foul play, leaving only a collection of physical descriptions and the stark reality of his absence. The overview of this case is one of profound uncertainty, a young man who seemingly vanished without a trace from a major American city, leaving behind more questions than answers and a family still hoping for a resolution.

Jul 25, 2014

Seattle

Washington

King County

98104

No

23626

Seattle Police Department

Seattle

Washington

King County

98104

Elizabeth Litalien

Detective

610 5th Avenue, Washington

2066255011

Local

Law Enforcement

14-352721

2014-07-29

Seattle Police Department

Brown

Hazel

Hazel

06/10/2026


Area Last Seen: