Actor Matthew Mindler's cause and manner of death have been revealed. The actor, known for his role in the film "Our Idiot Brother," died of complications of sodium nitrate toxicity, the Lancaster County Coroner's Office in Pennsylvania confirmed to Fox News.
He was 19 years old. Mindler's manner of death was ruled a suicide. In documents, the coroner confirms the death is "due to injury." The star was born on Nov.
23, 2001. His death date is listed as Aug. 28. Former child actor Matthew Mindler died by suicide, Fox News has confirmed. (Jamie McCarthy/Getty Images) Sodium nitrate is listed online as an oxidizing agent and is known to preserve foods.Read more on foxnews.com