The one thing you may not have read but should read is this one (violent content). The piece ends:
So in closing, because I can never say this enough, the person responsible for Kasandra Perkins' death is Jovan Belcher. There was nothing Miss Perkins could have done to cause Mr. Belcher to murder her in cold blood. He pulled the trigger the 1st, 2nd, 3rd,4th,5th,6th,7th,8th, and 9th time he shot her.
That ending is necessary because of the many, many stories which discuss the possible role of drugs, alcoholism and brain injury in what made Jovan Belcher kill Kasandra Perkins. One piece even suggests that Perkins was a "catalyst" to her own killing.
I understand the search for explanations and the search for hypothetical scenarios where Kasandra Perkins might not have died. But these very easily shift into victim-blaming or something equally nasty: The apparent justification of a killing.