I don't know all of the details of the case but he had multiple, dangerous pitbulls that were loose....which resulted in the death of a kid.It is unclear to me from reading that article what actions the owner took for which he should be held responsible. Do you know by chance? Or do you think that anyone who owns a pit (or a dog generally) that kills someone should be charged with murder?See, this is what we should be focused on....
Murder charges for OWNER of pitbulll that killed a 4 year old:
http://www.msn.com/en-us/news/us/murder-charge-filed-against-detroit-dog-owner-in-boys-death/ar-AAg7zF9?li=BBnbfcL
It's all about responsibility. Banning this breed won't solve anything. As it's been mentioned a million times in this thread, you'll just have another breed that will become popular some irresponsible owners and then we'll be talking about banning THAT breed.
I know the gun comparison has been mentioned several times but really, it's a fair one. When a person commits a violent crime with a gun, we don't ban that type of gun. We punish the person responsible for owning and using that dog. The same should be said for all dogs....whether it's a 70 pound pitbull full of sharp teeth, a 15 whiny beagle, or a 140 gentle sheepdog....they all have a owner that should held fully responsible for their actions.
Regarding your other question, I think that like most murder cases, it should vary based on different factors (what actions did or didn't the owner take to prevent this? was he proactive in training his dog? was the dog registered with the county? how was the dog contained? did the dog see a vet regularly? etc.) and the punishment should range as well (manslaughter, 2nd degree murder, 1st degree, etc).
that's where I jump ship.