Prosecutors in Los Angeles are reviewing new evidence in the case of Erik and Lyle Menendez to determine whether they should be serving life sentences for killing their parents in their Beverly Hills mansion more than 35 years ago, the city’s district attorney said Thursday.

Los Angeles County District Attorney George Gascón said during a news conference that attorneys for Erik Menendez, 53, and his 56-year-old brother, Lyle Menendez, have asked a court to vacate their conviction.

Gascón said there is no question the brothers committed the murders, but that his office will be reviewing new evidence and will make a decision on whether it warrants a resentencing. A hearing was scheduled for Nov. 29.

“We have not decided on an outcome. We are reviewing information,” Gascón said.

The new evidence presented in a petition includes a letter written by Erik Menendez that his attorneys say corroborates the allegations that he was sexually abused by his father. Gascón said he believes that the topic of sexual assault would have been treated with more sensitivity if the case had happened today.