Actor and model Ethan Browne's cause of death has been revealed. The Los Angeles County Medical Examiner confirmed on Tuesday, January 13, that Ethan, the son of songwriter Jackson Browne, died from the "effects of fentanyl, methamphetamine and lidocaine," per documents obtained by Us Weekly. The medical examiner ruled that the manner of death accidental. He was 52. Jackson, 77, shared the news of his son's death in November 2025.