In Spousal Murder Cases, Husbands are More Likely to be Convicted and Serve Longer Sentences.

      In spousal murder cases the husbands were sent to prison in 81% of the cases, and served an average of 16.5 years but the wives went to prison in only 57% of the cases, and served only 6 years on average in prison. So there's our patriarchal justice system right there:

 Source: Bureau of Justice Statistics: Spouse Murder Defendants in Large Urban Counties