speculate randomly on whether or not wearing a helmet would have made the slightest difference to her outcome.
She died from head injuries. A helmet may not have helped, but its unlikely to have hindered.
I've no particular feelings about this, it frustrated the hell out of me to see her in black with no lights. If I was a heartless soul, I'd say it was darwinian. But ultimatly she was someone's daughter/wife/friend etc and the driver shouldn't have hit her.
Anyway. The solution is that everyone needs more common sense. That's why its called common sense.