“Extra” talks to “Monsters: The Lyle and Erik Menendez Story” stars Cooper Koch and Nicholas Alexander Chavez about the series that has everyone talking. Cooper, who plays Erik, details visiting the real brothers in prison with Kim Kardashian. He says the trip was emotional and inspiring, and that Erik and Lyle are “amazing people” who have “done so much good in prison.” Erik issued a statement criticizing the show, and Cooper said he supports Erik and understands how he must feel. Cooper and Erik also open up about acting opposite Javier Bardem and Chloë Seivgny, who play José and Kitty Menendez. “Monsters” is streaming on Netflix.