Typical cop-speak. They don't know how fast the vehicle was going, but they "know" speed was a factor. But it's a provable fact that parked vehicles rarely get into accidents. Interesting, though, that the only girl in the vehicle was the driver.
“... speed was a factor”.
I know someone in law enforcement and this is what he told me. “Speed is a factor” simply because the car/vehicle was moving on impact. Let’s say you are driving 25 mph (in a 45 mph zone) and hit a tree. Speed is a factor because if the car wasn’t moving.. you wouldn’t have hit the tree. So, yes... typical cop speak.