I understand that the family are upset and need to grieve but to me it sounds like they want someone to blame. I once got the blame for a woman dying 3 days after being in hospital because she walked about 10 paces to the ambulance. Her house was so full of clutter we couldn't get a carry chair in (not that i'd have really wanted to as she must have been about 25 stone.... this was the days before ramps).