When we moved into our current home 6 years ago, the old chap next door had a carer call into him every day, he was tone deaf, so I knew when the carer was there, because of the raised voices. The day after New Year's Day, his telly had been blaring out all night, I said to Mr. Den, something is wrong - I saw the carer come and then go, without gaining access to the bungalow. I phoned the Police and they broke in, the old chap was dead in his armchair. Obviously the carer, didn't find it strange he could get access, and never reported it.
So this story doesn't surprise me. Very Very Sad.