“The average prison sentence for men who kill their intimate partners is 2 to 6 years. Women who kill their partners are sentenced, on average, to 15 years.
A pair of Maryland cases vividly illustrates this inequality in sentencing. In one case, a judge in Baltimore County, Maryland sentenced Kenneth Peacock to 18 months for killing his unfaithful wife. The very next day, another judge in the same county sentenced Patricia Ann Hawkins to three years in prison for killing her abusive husband. Significantly, the prosecutor in the Peacock case requested a sentence twice as long as the one imposed, while the prosecutor in the Hawkins case requested one-third of the sentence imposed.”
“As many as 90% of the women in prison today  for killing men had been battered by those men.”
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~ The Michigan Women’s Justice & Clemency Project