The district attorney for Los Angeles County has suggested that a judge resentence Erik and Lyle Menendez due to new evidence that warrants a reconsideration.
A popular Netflix series was recently inspired by the 1989 killings of Kitty and Jose Menendez in their Beverly Hills mansion, which had captivated the US for years.
The recommendation must be approved by a court and then approved by a parole board for the brothers to be released.
In California, Erik Menendez, 53, and Lyle Menendez, 56, are incarcerated for life without the chance of release.
The case centred on their motive in the murders, in which their parents were shot 13 times as they watched television.
“I believe the brothers were subject to a tremendous amount of dysfunction in their home and molestation,” said George Gascón, LA County’s top prosecutor, on Thursday.
He added that, while there is no excuse for murder, “I believe they have paid their debt to society”.
During their criminal trials in the 1990s, prosecutors painted the brothers as rich kids who methodically planned the murders to gain access to their parents’ fortune.
But their defence attorneys argued the brothers were victims of years of emotional, physical and sexual abuse and only acted out of self-defence.