Yes. I’ve read several books, articles and based on what I read about Darlie and her relationship with Darin, I think she did it.
My theory is that the couple was having serious financial problems, Darlie was not coping well after the birth of her 3rd son and had profound PPD. I believe that Darin asked her for a divorce and that Darlie killed the 2 boys and tried to kill herself to punish Darin. After slicing her neck she chickened out. I think Darin planted the bloody sock that was found before police arrived because he knew Darlie did it and tried to get suspicion away from her.
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