I've read through the posts and have to point out the Mafia theory is just stereotyping and BS. the insurance salesmen supposedly mentioned that Sodder would get his because of things he said about Mussolini. The Italian Mafia did not support Mussolini. He tried to shut them down in Italy because he felt they took some power away from him. Lucky Luciano and the NY Mafia even made a deal with the feds to protect the docks and ships in NY from fascists during WWII.
Some of you will argue that this mafia is not the same as the NY/Chicago syndicates or Five families. So it is important to note that several months before the fire, Mussolini 's body was stoned and dragged through the streets. Most Italians hated Mussolini at this point in history. Yet in this town there were Mussolini-loving fascists willing to kill an entire family?
Blaming the Mafia in this case is the same as blaming a random black guy for a car jacking. And the Mussolini comment was concocted to give the "authenticity " to the threat. MOO
It does sound like it could be arson, especially since the cars weren't working and the ladder was gone. But I don't think the Mafia can be blamed. I believe the kids died in the fire. The mother woke up three times that night but didn't hear 5 kids being forced away from the house? I think that kids fell asleep later than everyone else, were in a different and deeper phase of sleep than those who had been to bed earlier and didn't wake up in time. Or: they were in the same room so perhaps those rooms got a lot more smoke more quickly than other areas of the house. Either way it is not at all uncommon for some people to survive a fire and others to perish.
I think the bones were likely there buried in the rubble of the house. The house did burn for 8 hours, giving time for the floors to collapse and debris and bones to fall into the basement or crevices where they were not able to be spotted easier. If a better search had been done, I believe bones would have been found, but the father bulldozed it only days after the fire. Even today it can take time for a fire to be cleared our, and that is with 60 years of advancement in knowledge, equipment and techniques.