(L.A.) Brian Diemer, 55, Died in a Hospital

Case Number: 2025-06445

Los Angeles County is reporting the death of a 55-year-old White/Caucasian male that occurred in a hospital.

The coroner’s office identified the man as Brian Diemer.

Born in L.A. County. Mother’s maiden name is Wilson.

Manner of Death: Accident

Cause of Death A: Sepsis

Cause of Death B: Pneumonia

Cause of Death C: Group A Streptococcus Infection

Other Significant Conditions: Effects of Fentanyl, Methamphetamine, and Cocaine

Other Significant Conditions: Medical History of Polysubstance Abuse; Combined Effects of Fentanyl, Methamphetamine, and Cocaine

RIP BRIAN K DIEMER (April 3, 1970 – April 15, 2025)

Formal pronouncement of death was made on Tuesday at 11:59 a.m.

As of June 18, the body has not been claimed by a funeral home.