• Robert Mueller, former FBI director, died at 81 from Parkinson's disease.
• Mueller's investigation into Russian interference in the 2016 election was highly consequential.
• Donald Trump responded to Mueller's passing with a controversial statement.
• Mueller's family has requested privacy following the announcement.
• His career spanned decades, reshaping the FBI’s role in national security.

Robert S. Mueller III, the former FBI director who led the investigation into Russian interference in the 2016 U.S. presidential election and its connections to Donald Trump’s campaign, has died at age 81. His family announced that he passed away on Friday night, March 20, 2026, asking for privacy during this difficult time, according to Reuters, Le Monde, and CBS News.

Mueller, who served from 2001 to 2013 as FBI director, oversaw a significant transformation of the agency to address national security following the September 11 attacks. After concluding his term, he was appointed special counsel in 2017 to investigate Russian interference during the 2016 presidential election, where his findings indicated extensive contacts between Trump associates and Russian officials, though he did not establish a criminal conspiracy, as noted in reports from BBC and LA Times.

After news of Mueller's death, former President Donald Trump reacted publicly with a statement on his social media platform, expressing that he was "glad he's dead" and claiming "he can no longer hurt innocent people," which was widely perceived as a continuation of his contentious relationship with Mueller, according to reports from India Times and South China Morning Post.

During his career, Mueller was recognized for his integrity and ability to navigate in a politically charged environment. His tenure included critical investigations into organized crime and national security threats, further highlighted by his role in reshaping the FBI's mission after the September 11 attacks, as discussed in sources such as NPR and Channel News Asia.

Mueller's death marks the end of a significant chapter in U.S. law enforcement and politics, leaving behind a complex legacy that continues to provoke discussion and debate among political leaders and the public alike.