Probably hopped out of her car forgetting to put it in park. I did that once while stopping at the mailbox. A simple brain fart moment that can have disastrous consequences.
so in the case of this woman, she gets out of the car while it is still running, and then what happens? she trips, falls, and somehow falls under the car? so weird... i have on occasion forgotten to put my car in park, but i turn off the car... when i get back in and start the car, it does not start... and i think i have a dead battery... i even called a tow truck once... a few months ago, i called my son to come give me a jump... he did, but nothing happened... he looked in the car and casually said, "you need to put your car in park..." aye, aye, aye...