I was able to read the articles although I am not a subscriber to this newspaper. The following quote from the first article (referring to a previous issue with Louis's teeth), I found interesting.
"Herman said the agency found no evidence of parental neglect and that the children were not left unattended.
“We did not come to the conclusion they were neglecting Louis, but they were less aware of his coming and going than normal. That was probably due to his hyperactivity,” said Herman. “Our record shows it was really his doings, not the parents’.”
Louis was used to rural New Jersey where he had relatives and people tended to know each other, according to these articles, and his family had only moved to Allentown slightly less than a year before (June of 1983).