On Aug. 20, 1989, Lyle and Erik Menendez brutally murdered their parents, firing so many shots into them—to the point that Lyle returned to his car to reload his weapon—that their bodies were more or less mutilated.

Chloë Sevigny also stars in the nine-part follow-up to 'Dahmer - Monster: The Jeffrey Dahmer Story,' this time chronicling the infamous 1989 murders of a couple by their two sons.

I n the wake of the massive popularity of Dahmer, Ryan Murphy and Ian Brennan are back with a new season of their Monster anthology series that explores the lives and crimes of the infamous Menendez brothers.