Killers Wedge - an 87th Precinct mystery Author:Ed McBain BLACK WIDOW
She wore black, basic black, and the color matched the barrel of her .38. She marched into the 87th Precinct on business and wasn't prepared to leave until it was finished.
Simply, it was a routine matter of life and death. Steve Carella had ended her husband's life - and she wanted him to pay for it - with his own death.