"You know, I don't want to make this too much about Donald Trump". Another 19 people were injured in the mayhem.
"My heart goes out to the people of Charlottesville, to those who were harmed by today's senseless violence and their loved ones".
The former President quoted Nelson Mandela in a tweet on Saturday night as violent clashes between white supremacist groups and counter-protesters unfolded in Charlottesville.
Mr Trump condemned violence by "many sides" - but stopped short of explicitly condemning the far-right.
"On behalf of the City of Charlottesville and all of our citizens, we send our deepest condolences to the families and friends of Ms. Heyer", the Charlottesville press release says.
Virginia State Police say the National Transportation Safety Board and the Federal Aviation Administration are assisting in the investigation into a fatal helicopter crash that claimed the lives of two state troopers.
Protesters and counterprotesters started throwing things at one another, including plastic bottles and gas bombs, and at one point the two groups charged one another and there were tussles.
The Anti-Defamation League says Vanguard America believes the U.S. is an exclusively white nation, and uses propaganda to recruit young white men online and at college campuses.
President Donald Trump said hate and division have no place in America.
Democrats criticized the president for failing to single out white nationalists, and several Republicans issued statements condemning white nationalism or white supremacists.
They were protesting against the removal of a statue of Confederate Gen. Robert E. Lee. The news agency says Bloom became visibly upset as she learned of the injuries and deaths at the rally.
Apart from the car-ramming incident, Charlottesville police said at least 15 were wounded in other violence related to the far-right march.
White nationalists, including the Ku Klux Klan and neo-Nazis movement leaders, were clashing with counter-protesters at the rally hours before the collision in downtown Charlottesville.