Any citizen, LEO or not, who walks into another person's house and kills them, accidental or not, at the very least, would be charged with negligent homicide or manslaughter. We wouldn't even be having a conversation if charges were justified if this wasn't a LEO. Sometimes blind loyalty to the blue makes us overlook that they are citizens subject to the same laws and bearing the same responsibility.
The sad part is if Botham had shot her in self-defense, facing an unlawful home invader, some probably wouldn't even hesitate calling for his head and saying he should have 'just complied'.