Well, no.
It's how he killed them and tortured them in the process that makes this criminal a deserving case.
Of course, it you were his first victim after he graduates to people, we could revisit this conversation.
After he graduates to people?
What makes you think that it is likely that he will graduate to people? You do realize that serial killers often have a history of animal abuse, but that isn’t the same thing as animal abusers all becoming serial killers...don’t you?