>> tammi and i talk about what happened that night, and i tell her everything, and she's -- it's -- her love has allowed me to really begin the long road to healing. >> at the end of it all, the menendez brothers were sentenced both to life in prison, but still today, questions remain about what their motive was and whether or not killing their parents was actually justified. >> yes, i do. >> please take the stand -- >> i heard iteration after iteration after iteration of their stories, and i went through believing them and not believing them. i've never been able to come to my own conclusion about exactly why it happened. >> i always thought that lyle was the pathological problem. he was the older brother. he exerted incredible, if not undue, influence on his younger brother. >> erik was probably smarter than lyle, even though he didn't