So Red's wife was a piece of shit as well?
At the end when their son has the gun pointed at Jeff, Red's wife in a very evil vindictive demanding way says "Do it!!", she didn't say "do it!" in a scared i'm not sure about this but we gotta do it kinda way, she screamed it with a very gleeful evil demanding look on her face as she said it.
Yeah she had no idea about the freezer, but the way she told her scared crying son to murder this guy with that look on her face told me shes not all that sweet and innocent. She had no issue with making her son murder someone, and it would be one thing if as i said she looked scared or unsure when she told her son to do it, but she looked almost as if she was gonna enjoy it.
Plus Jeff didn't come in there shooting everyone or act like a murdering scumbag, he came in there saying he wanted his wife back and that she was locked up in a hole in his barn and even told her "Your husbands a liar and a kidnapper". Why would a guy who wants to murder you for no reason come in there saying that? The wife didn't even question that, she just demanded her son shoot him.