Green allegedly slammed his sedan into two police officers near the Capitol’s North Barricade, the entrance where congress members and their aides come and go.
The attack killed U.S. Capitol Police Officer William “Billy” Evans and injured another officer, who was still hospitalized Friday evening in stable condition.
Sources told Fox News it appeared to be a “lone wolf” attack and that the suspect identified himself as a Nation of Islam follower on Facebook who may have recently lost his job.
A Facebook profile matching that description has been taken down by the social media giant – but Fox News reviewed a number of posts and images before that happened.
Facebook said it was working with law enforcement and had taken down the profile under its “Dangerous Individuals and Organizations” policy.
The page included photos and videos of Nation of Islam rallies, and the bio identified Green as “Follower of Farrakhan.”
And a recent profile photo appears to resemble the build and haircut of news camera video showing the suspect being loaded into an ambulance.
The most recent post was a YouTube video of a 2009 Louis Farrakhan speech titled, “The Crucifixion of Michael Jackson.” In it, the Nation of Islam leader said Jesus was not the Messiah and called Christian theology a lie.
In one post from March 17, Green wrote complained of being unemployed and tough times amid the pandemic and said his religious beliefs were keeping him going.
He also praised Farrakhan, an outspoken anti-Semite, as “Jesus” and former NOI leader Elijah Muhammad as “the exalted Christ.”
“My faith is one of the only things that has been able to carry me through these times and my faith is centered on the belief of the Honorable Minister Louis Farrakhan as Jesus, the Messiah, the final divine reminder in our midst,” he wrote. “I consider him my spiritual father.”
Other recent posts included videos of Farrakhan speeches and an image of certificate thanking him for a $1,085 donation to the Nation of Islam.
Green was a high school football standout and played for Christopher Newport University in Virginia, where his student athlete profile says the figure he’d most like to meet from history was Malcom X.
A number of relatives, coaches and former teammates did not immediately respond to Fox News requests for comment.
In his March 17 post, he urged his friends to look into Farrakhan’s past behavior as a source of inspiration.
“As written in the bible, you can tell a tree by the fruit it bears,” he wrote, signing the post “Brother Noah X.”
Fox News’ Bill Mears contributed to this report.