(L.A.) Daniel Breiner, 39, Died in a Hospital

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Case Number: 2025-15029

Los Angeles County is reporting the death of a 39-year-old White/Caucasian male that occurred in a hospital.

The coroner’s office identified the man as Daniel Breiner.

Manner of Death: Suicide

Cause of Death: Probable Serotonin Syndrome Due to Acute Intoxication by Serotonergic Medication(s)

RIP DANIEL TODD BREINER (June 18, 1986 – September 24, 2025)

Formal pronouncement of death was made on Wednesday.

Serotonin Syndrome is a drug-induced condition caused by an overactivation of serotonin receptors in the central and peripheral nervous systems. It typically results from acute overdose or drug interactions involving serotonergic medications (e.g., SSRIs, SNRIs, MAOIs, tricyclic antidepressants, certain painkillers like tramadol, or recreational drugs like MDMA).