Menendez brothers' claims of abuse supported by letter, new allegation

Lyle Menendez tells "48 Hours" contributor Natalie Morales, "There's just never been a case of guilt or innocence. It was always about why it happened."

source https://www.cbsnews.com/news/menendez-brothers-lyle-erik-abuse-claims-supported-by-newly-discovered-evidence-48-hours/