Costco should be held fully responsible as having employed the officers to gun down a lawful citizen; if it had been a Gangs’ta it would have been profiling and no one would have done anything, cause it’s okay to kill cracka`s.
Although the Officer’s and Department should bear some responsibility; I would want to see Costco’s and Police videos, hear both the 911 recording and the dispatch audio, and see the individual self-written citizen reports plus Officer Reports then decide.
I don't believe they were CostCo policemen (I'm pretty sure CostCo doesn't have a private army). They were Las Vegas Police. Lawsuits (probably warranted, based on what I've read so far) will be paid by the taxpayers. If this homicide was due to negligence and incompetence, the police in question need to be fired. The CostCo clerk who caused this event also needs to be fired.
But other than that, I can't see CostCo's financial liability. Yes the clerk was an overreacting idiot, but at least she was unarmed. Other overreacting idiots employed by the City (or State), were the ones who gunned the citizen down.