Officer Matthew Schindler's wife, Gina, filed a lawsuit in Queens Supreme Court. It seeks unspecified damages.
It charges that Schindler's career depended on his "submission to the sexual advance" of his married supervisor, Sgt. Christine Hirtzel.
The lawsuit says Schindler told Hirtzel he would kill himself if she didn't end the affair.
It says Hirtzel reported the suicide threat to her supervisor and confessed to the affair.
The father of three shot himself in the head on the Long Island Expressway on Feb. 13, 2012.
Hirtzel's husband, the NYPD and Gina Schindler declined to comment.
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