
Robert Mueller, the former FBI director and special counsel whose investigation into Russian interference in the 2016 presidential election became one of the most scrutinised legal inquiries in modern American history, died on Friday, 20 March 2026, at the age of 81. His family released a brief statement the following day, saying only that 'Bob passed away' and that the news was shared 'with deep sadness.' No official cause of death was provided.
The timing gave the announcement a certain resonance that went largely unsaid. In August 2025, his family had revealed that Mueller had been living with a Parkinson's disease diagnosis since the summer of 2021, a fact kept private for four years. By then he had stepped back considerably from his work at WilmerHale, the law firm where he served as a partner after his government career, and had reduced his teaching commitments. Whether Parkinson's was the proximate cause of his death remains unconfirmed.