Here is a link to a more recent CNN story which presents some photographs and interviews the photographer:
http://www.cnn.com/2017/08/14/us/charlottesville-car-photo/
Of note:
1. Heyer is not identified in the photograph, although one person shown to be struck by the vehicle apparently was attending the rally with her. Anderson Cooper is not stupid. Notably he does not ask any questions about Heather Heyer in relation to the photographs.
2. The photographer says the vehicle backed up on the street before accelerating into the crowd. Compare that statement to this video:
https://www.youtube.com/watch?v=D7FPmojhEeE (no tire spin marks at the start of the approach of the car or sound of car accelerating).
The most interesting video is this one
https://www.youtube.com/watch?v=G9Bf9XOetMw which shows:
1. The car which is later involved in the crash at 00:53 (about 8 minutes of livestream before the incident)
2. The van which blocked the intersection at 2:51 (about 5 minutes of livestream before the incident). The van appears to be unimpeded by the crowd at this point in time.
3. No evidence of tire skid marks on the road above the place the accident (see 8:35)
4. Medical care being provided to someone on the ground behind a pickup truck at the side of the street at 9:10.
5. Another person getting medical care near the building wall to the side of the middle car of the collision at 11:00.
6. Middle car air bag does not seem to have deployed (31:45)
Another interesting video is
https://www.youtube.com/watch?v=JrRxXxJoraI. While I think the commenter is wrong when he suggests the other 2 cars in the collision were moving before the crash, what appears to be correct is that the car which causes the collision was attacked by a protester
before the collision occurred (see 1:49). I don't recommend this video for its analysis, but rather for the focus it places on some of the video evidence.
A video that analyzes where Heyer was in relation to the crash is
https://www.youtube.com/watch?v=SKZqG1T07cs. Again, I don't recommend it for its analysis of what Heyer's cause of death was (and in fairness, the poster doesn't claim certainty), but at least the video helps identify Heyer by her appearance that day, and likely position. The video also notes Heyer's mother confirming that Heyer's heart had to be restarted by CPR, which is consistent with the video of the person who is suggested to be Heyer.
Again, none of this means Heyer's death is unrelated to the crash. It may, however, mean that Heyer was not struck by the car.