Dean Katamanin Chicago, IL Death and Obituary – The Los Angeles County Medical Examiner’s Office has confirmed the tragic death of Dimitri “Dean” Katamanin, 40, who was found deceased at his Los Angeles residence earlier this week. The news has left family, friends, and colleagues mourning the unexpected loss of a respected professional and devoted son and brother.
According to official reports, authorities responded to Katamanin’s home on Tuesday, October 21, 2025, where he was pronounced dead at the scene. The coroner’s report determined the manner of death as accidental and listed the cause as drowning. The case has been officially recorded under number 2025-16531 by the Los Angeles County Medical Examiner’s Office.
Katamanin was described as a White/Caucasian male, standing 5 feet 9 inches tall and weighing approximately 240 pounds. While the investigation into the full circumstances surrounding the incident remains ongoing, officials have indicated that there is no evidence of foul play at this time.
Born and raised in the Chicago area, Dimitri Katamanin came from a family with a well-documented and often challenging history. His father, Mikhail Katamanin, passed away in Switzerland in 2009 at the age of 53, a loss that deeply affected the family. Tragedy struck again in 2021, when Dimitri’s younger brother, Alan Stephen Katamanin, died by suicide at the age of 31. Those close to the family have described them as resilient in the face of hardship, always striving to move forward despite profound personal losses.
Professionally, Dimitri—known to many as Dean Katamanin—was a prominent figure in the private jet charter industry. As a managing partner in a leading aviation firm, he was known for his entrepreneurial drive, attention to detail, and commitment to excellence. Colleagues and clients alike have spoken of his ability to blend professionalism with a personal touch, often going above and beyond to ensure every endeavor reflected his high standards.
Friends describe Dean as thoughtful, generous, and deeply loyal, someone who quietly made a positive impact on those around him. His death, coming so unexpectedly, has prompted an outpouring of grief and remembrance from across both the business community and his circle of loved ones. “Dean was more than just a businessman—he was a kind soul who cared deeply for his family and friends,” one close associate shared.
At this time, authorities have not released additional details about the circumstances leading to the drowning, and the case remains under review by the Los Angeles County Medical Examiner’s Office.
The Katamanin family is expected to announce memorial and funeral arrangements at a later date. As loved ones continue to process this devastating loss, many remember Dimitri “Dean” Katamanin not only for his professional accomplishments but for the compassion, intelligence, and warmth that defined his life.