Both a U.S. official and the family of a young man who rammed his car into a U.S. Capitol barrier and killed an officer say that the 25-year-old had been suffering from severe mental illness.
The suspect, Noah Green, drove his Nissan into two police officers at the Capitol on Friday, killing Officer Billy Evans. When Green emerged from the vehicle with a knife, he was fatally shot by the other officer.
A U.S. official said Saturday that investigators are focused on Green's mental health, saying he suffered from delusions, paranoia, and suicidal thoughts. Green described himself as a follower of the Nation of Islam, a religious group started by the incendiary figure Louis Farrakhan.
Likewise, Green's family said he suffered from mental illness and that they were concerned for his wellbeing in the weeks leading up to the attack. He had made claims about being watched, being drugged by the FBI and CIA, and had made increasingly strange posts on social media.
Green had reportedly moved to Indianapolis in search of drugs and had tried to change his name to "Noah Zaeem Muhammad." Two weeks before Friday's incident, he had moved into his brother's apartment in Virginia.
His family believes the head injuries he sustained during his time as a college football player may have contributed to his mental illness.