The Manhattan widow who lived free for 20 years after the stabbing death of her husband will be locked in a jail cell while she waits to go on trial for his slaying. A judge denied bail on Wednesday to Roslyn Pilmar, who’s charged with second-degree murder in the 1996 killing of Howard Pilmar. Pilmar, who owned an office supply store and coffee bar, was knifed 25 times in the neck, chest and back inside his business near the Empire State Building, authorities say. Pilmar's lawyer, Sam Talkin, tried convincing Justice Jill Konviser that Pilmar wouldn’t skip town before trial because she wants to "clear her name." He asked the judge to release her on $750,000 bond, secured by $450,000 in cash and property, with GPS monitoring. "She has all the reason to stay here and clear her name," Talkin said of the 60-year-old. "She knew for 20 years that a relentless investigation was going on against her ... If she wanted to flee, she would have, and none of us would be here right now." Konviser wasn't swayed and remanded Pilmar, apparently because she pleaded guilty to second-degree grand larceny in 1999 for stealing from her former job. The judge said the crime showed a "certain level of dishonesty.” Pilmar’s brother, Evan Wald, is also charged with the murder. He is in custody and awaiting extradition from Virginia to New York.