Jean Harris

Jean Harris, center, arrives at the Westchester County Courthouse to hear the verdict in her second-degree murder trial, in 1981. She was sentenced to 15 years to life in prison but was granted clemency in 1992. (Ron Frehm / Associated Press)

Jean Harris, the onetime headmistress of an elite girls' school whose trial in the fatal 1980 shooting of the celebrity diet doctor who jilted her generated front-page headlines and national debates about whether she was a feminist martyr or vengeful murderer, has died. She was 89.

Harris, who spent nearly 12 years in prison for the shooting death of her longtime boyfriend, "Scarsdale Diet" doctor Herman "Hy" Tarnower, died Sunday at an assisted-living facility in New Haven, Conn., of complications related to old age, her son James said.

Convicted in 1981 of second-degree murder, Harris, who had at least two heart attacks in prison, was granted clemency on her 15 years-to-life sentence on Dec. 29, 1992, by then-New York Gov. Mario Cuomo, who cited her health and advancing age.

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"I honestly thought I would die in prison," Harris said after her release.

Harris, then 68, took up residence in a New Hampshire cabin overlooking Vermont's Green Mountains, where she walked her dog, wrote and raised money for a program to help children of inmates at New York's Bedford Hills Correctional Center, where she was imprisoned after her Feb. 28, 1981, conviction.

The March 10, 1980, shooting of Tarnower — which she claimed throughout her life was her own suicide gone awry — was one of the most sensational crimes of its era.

FROM THE ARCHIVE: Times reporting on Jean Harris

It riveted the nation, not only because of its titillating combination of sex and violence. It raised what many experts said were important sociological issues, with some feminists rallying to Harris as a symbol of society's disregard for the plight of older women and others arguing that her case had nothing at all to do with feminism.

Women's movement icon Betty Friedan dismissed Harris as a "pathetic masochist" for staying with a man who mistreated her. But author Shana Alexander, who wrote a book on the case, described Harris as the "psychological victim of a domineering person."

Whether morality play or soap opera, the case inspired two TV movies: "The People vs. Jean Harris" (1981), in which Harris was portrayed by Ellen Burstyn, and "Mrs. Harris" (2005), which starred Annette Bening.

In 1980, Harris was the 56-year-old headmistress of the fancy, private Madeira School overlooking the Potomac River in McLean, Va. Tarnower was a 69-year-old cardiologist and best-selling author of a book on a high-protein, low-fat diet that he developed for heart patients at his medical center in well-to-do Scarsdale, N.Y.

When they met in 1966, they were so taken with each other that Tarnower — a lifelong bachelor — gave Harris a 4-carat diamond engagement ring. He quickly changed his mind, telling her that he couldn't stop seeing other women.

Harris agreed to this condition, and through the years became what she wryly described as "the broad-he-brought" to dinner parties. By 1980 the 14-year relationship was on the skids as Harris became embittered watching Tarnower, in the wake of the Scarsdale diet book, growing ever more rich and famous.

The last straw for Harris: Tarnower was "wavering" about whether to invite her or a younger woman, Lynne Tryforos, to a dinner honoring him.

After one particularly harrowing week at the school when she expelled four seniors, Harris decided on suicide. She wrote notes to her grown sons, put her papers in order, packed a .32-caliber handgun in her purse and drove five hours from Virginia to Tarnower's six-acre estate in Purchase, N.Y.

She later testified that she wanted to see her lover one last time before killing herself at the estate's duck pond. But her plans went awry after she let herself into his home, found Tarnower asleep and spotted a negligee and hair rollers in a bathroom — evidence that her rival, 38-year-old Tryforos, had recently stayed over.

Harris threw the hair rollers at a window, breaking it, and also broke a cosmetic mirror. The ruckus woke Tarnower, who struck her, Harris said. She said that she challenged him to "hit me again, Hy, make it hard enough to kill," but he withdrew. Feeling the revolver in her pocketbook, she pulled out the gun and said to him, "Never mind, I'll do it myself."

But, she testified, when she raised the gun to her temple, he grabbed the weapon, which went off and wounded him in the hand, giving her time to grab the gun again; she later testified that she thought she had time to kill herself.

In the ensuing struggle, Tarnower was struck by bullets three more times — in the chest, arm and back. A fifth bullet also was fired. Harris maintained throughout her life that Tarnower was trying to prevent her from killing herself.