Some of the alleged attacks are believed to have occurred in the couple's home.
So how, many ask, could Dottie Sandusky not have known?
"I've seen it both ways," clinical social worker Farlie Chastain says. "In which the family knows and is in denial."
http://www.wrcbtv.com/story/16020867/serial-child-sex-abuse-what-could-sanduskys-wife-have-known
Sandusky was a fixated pedophile though. (There are different types of pedos and people who chose children for their sexual gratification.) This means Sandusky only had a sexual interest in children. IMO, Dottie knew because her husband was not interested in her or other women. She may have rationalized his lack of sexual interest as many different things (side effects of blood pressure medicine, the stress of his job, blamed her own appearance, and etc...) but she definitely knew her husband was not sexually "normal".
Pensfan
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verified psychiatric mental health nurse