To the Catsouras family, I am deeply sorry for your loss, but your score to settle is not with the nebulous force of users that are the internet but with the Orange County Police Department.
I'd say that you are slightly wrong. They are with both. They should report to the Orange County Police Department for every single time some one sends them one of these.
In my opinion, it would be more heroic of you not to spend a second mortgage suing your police department but instead using that money to create awareness of hazardous driving, starting a college fund in her name, donating that money to charity in her name or doing something less destructive with it in her name.
That's not a real human reaction though. It isn't the fact that their daughter died that is the matter. It isn't the matter that the PD took the usual crime scene photos. The issues is that instead of spam, they are getting sent these crime scene photos constantly sent to their e-mail! I'd be fairly sure that those responsible were disciplined or maybe even sacked. That would have been a fine reaction if the images never were sent to the family or friends of the girl. It would be like some one posting links to the images here in this thread. That's just completely unacceptable behavior. The police and the random internet users are at fault.
Finding out the details of the girl and the accident doesn't make me too thrilled, but normally news outlets and such would report something like this in a few paragraphs with a decent picture of the deceased and folks would grieve and go on. How the heck can they grieve or go on if every time they check their e-mail some folks are sending them not just reminders of their daughter, but the most terrible pics that a parent could imagine for their child.
I'm sure these folks are hurting and are going to be lashing out. That's what every law with a some one's name in front of is really about, some one just lashing out. I think that everyone that sent her these imagines needs a $500 dollar fine and/or a week/month in jail.
How would you feel if I sent you terribly dismembered pics of you kid? You'd be upset, angry and want to hurt me in some form or fashion. You'd also want it to stop and to make a way or process so that others can't do the same thing. I understand exactly where these parents are coming from. They won't quiet until they've run out of resources. They won't run out of hurt until long after folks stop sending this stuff. Heck, it could have happened last week or a decade a go, but receiving that stuff in your mail would be just as painful!