Fernando Valenzuela, the renowned pitcher for the Los Angeles Dodgers who played a key role in their victory during the 1981 World Series, passed away due to septic shock last month, as revealed in his death certificate.

The document was made public by TMZ Sports on Tuesday, indicating that Valenzuela died on October 22 at the age of 63. This tragic news came shortly after he concluded his role on the Dodgers’ Spanish-language television broadcasts and just days before the team initiated a campaign for its eighth World Series title. At the time of his passing, no cause was officially announced.

According to the Los Angeles County Medical Examiner’s office, septic shock was determined to be the immediate cause of death. This serious condition can result from organ failure that leads to critically low blood pressure, affecting tens of thousands yearly—over 350,000 fatalities are reported in the U.S. by the Centers for Disease Control and Prevention.

In addition to septic shock, Valenzuela’s health record noted underlying issues like decompensated alcoholic cirrhosis and nonalcoholic steatohepatitis cirrhosis. Another significant contributing factor mentioned in the report is “probable” Creutzfeldt-Jakob disease, a fast-acting disorder that impacts the brain.

Following his death, it was confirmed that Valenzuela was cremated. A public memorial service took place last week at the Cathedral of Our Lady of the Angels located in downtown Los Angeles, allowing friends, family, and fans to come together in remembrance.