Netflix's "Killer Inside: The Mind of Aaron Hernandez": Why Did an NFL Player Commit Murder?

"What is your definition of being happy?" In the second episode of Netflix's latest true crime docuseries, Killer Inside: The Mind of Aaron Hernandez, Stephen Ziogas, Aaron Hernandez's childhood friend, can't imagine what drove his friend to commit first-degree murder. He says, "I think the biggest misconception is he was someone who had everything and threw it all away. From what we know now, can you ever really define that he was happy?" In June 2013, the New England Patriots tight end had fam...