No, they died because the dad was an idiot. He was illegally tampering with the power, which resulted in them removing his access to it to prevent him from killing people, and so he killed them another way instead.
I don't think the facts are out on that yet. It was a rental property. Do you know whether he was responsible for the electricity bill in the first place? Or was it the landlord?
On several of my rental properties I include the electricity, water and gas in the monthly rent. Especially in the ones near a university campus where tenants tend to be a bit transient.