Innocence or culpability means little to me from an animal. It is not a worthwhile investment of time or energy, in my mind. Dog rehabilitators think differently - but I think that even they can find a more rehabitatateable dog than ones that have killed a human being.
Yes, until owners are held liable, and the property owner who allowed this woman to maintain this danger on his property - and until Animal Control takes dangerous dogs seriously and actually follows their policy on dangerous dogs running loose - this will continue to happen.
Look at my 4 criteria again. You see this in almost every dog attack involving death or serious maiming.
1. Large and/or aggressive breed of dog.
2. Running loose, often >1 running loose.
3. Previous acts of aggression towards humans.
4. Unrealistic expectation of passivity from owner, often despite #3.
The whole issue literally revolves around #4.