The older of the two brothers will be played by the relative newcomer.
For the first time in 20 years, Lyle spoke out about killing his parents in ABC's 2017 special Truth and Lies: The Menendez Brothers – American Sons, American Murderers. "It's shocking to think...that I could have been involved in taking anyone's life—and my parents' life...it seems unimaginable because it seems so far removed from who I am," Lyle said in a phone interview from prison. "But I found that my own childhood prepared me surprisingly well for the chaos of prison life."