Maybe, unless she profits from the crime.
If she writes a book and makes a mint, she doesn't owe the other widow a penny. Unless, of course, she was in on it, in which case she belongs in the can.
At this point it still seems like the widow is a victim, too.
If she sells her story why should she owe anything to anyone else?
What legal obligation does she have to provide compensation?
If the other family needs money, that is what life insurance is for and the deceased should have provided that. He is just as dead as if he’d had a heart attack the day prior.