On August 20th, 1989, Lyle and Erik Menendez shot and killed their own parents. Until then, this Beverly Hills family had been a portrait of the American Dream. How did it go so wrong? To listen to all four episodes of 'The Menendez Brothers' right now and ad-free, go to IntoHistory.com . Subscribers enjoy uninterrupted listening, early releases, bonus content and more, only available at IntoHistory.com . If you or someone you know is in crisis, there is free help available at mhanational.org Learn more about your ad choices. Visit megaphone.fm/adchoices…