Erik and Lyle Menéndez calls from Donovan Correctional Facility in the official trailer for Netflix’s The Menéndez BrothersThe documentary, which will be shown from October 7, contains new interviews with the brothers, in which they look back on the murder of their parents almost thirty years ago and the sensational trial that followed.

“Everyone wonders why we killed our parents,” Erik says in the trailer. “Maybe now people can understand the truth.” Director Alejandro Hartmann’s documentary juxtaposes the Menéndez brothers’ firsthand accounts with commentary from prosecutor Pamela Bozanich, their niece Diane Vander Molen, and other experts on the 1996 trial for the murder of José and Mary Louise “Kitty” Menéndez. Both brothers are serving life sentences without the possibility of parole.

In the trailer, Erik says, “Lyle was the only one who ever protected me. What happened that night is very well known, but so much is still untold.” Looking back on the trial, Bozanich says she knew from the beginning that their motive for murder was rooted in “plain old greed.” The brothers have maintained that it wasn’t about wealth at all, but rather years of physical, emotional and sexual abuse. “Two kids don’t commit this crime for money and there are people who don’t think I should spend the rest of my life in prison,” Erik says, with Lyle adding, “We would much rather lose the murder trial than talk about the family’s sick secrets.”

Both the brothers and the experts featured in the documentary comment on the sensationalism surrounding the murder trial, which has now morphed into a growing movement of Menéndez advocates on TikTok. But even as a new generation forms their own opinions about the case, as one expert puts it, “There is no evidence that they’re not guilty.” Bozanich is particularly irritated by this, saying, “I’m telling you right now that this is all fake — and if you don’t know it’s fake, that makes me angry.”

The Menéndez Brothers follows Ryan Murphy’s Monsters: The Lyle and Erik Menendez Storywhich premiered last week on Netflix. The series recreated the scenes from the night of the murder and the events that followed. It also took some creative liberties from Murphy, including a seemingly incestuous storyline that prompted a backlash from viewers as well as Erik Menéndez and his wife Tammi.

“I believed we had moved past the lies and the ruinous characterizations of Lyle, and had created a caricature of Lyle that was rooted in the horrible and blatant lies that were rampant on the show,” Erik wrote in a statement shared by Tammi on social media. “I can only believe they did this on purpose. It is with a heavy heart that I say I believe Ryan Murphy could not be so naive and inaccurate about the facts of our lives to do this without malicious intent.”

Following the release of the series and subsequent statements, actor Cooper Koch – who played Erik in Monsters — visited the two brothers in prison along with Kim Kardashian. Koch and Kardashian spoke to a group of about 40 inmates, the Hollywood reporterThe conversation was reportedly about prison reform and was also held in the company of Khloé Kardashian, Kris Jenner and Anti-Recidivism Coalition founder Scott Budnick.