Erik Menendez was denied parole Thursday more than three decades after he and his brother Lyle slaughtered their parents in the family's luxury Beverly Hills home.

A California panel ordered the 54-year-old to stay in prison, defying a lengthy campaign waged by family, friends and celebrities like Kim Kardashian.

"Erik Menendez was denied parole for three years at his initial suitability hearing today," said a brief statement from the California Department of Corrections and Rehabilitation (CDCR).

The result will be a huge blow to a movement that has swelled in recent years, nourished by documentaries and TV dramas, including the smash Netflix hit "Monsters: The Lyle and Erik Menendez Story."

The show and other productions have fixated on the grisly details of the 1989 shotgun murders

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