Such a tragic story. It makes me think about people who have been left undiscovered for months or even years.
I don't see why social services or the police are to blame though. This could happen to anyone, or to any lone parent who isn't known to social services or the police.
Anyone not known to social services and have no immediate family (which this father and son did) or close friends could potentially be left for months or years until eventually discovered.
Just because social services were involved, I don't think they are to blame, I actually think they accessed the property quite quickly. And thankfully they did, although the outcome was tragic. Police can't break into the homes of every single property where most of the time there would be no issue.