12. Aaron Hernandez
He played for the New England Patriots, so already the world hated him. However, Alexander Hernandez really did have a twisted life. He had a history of violent crimes. First of all, in 2007, he punched a bar employee after being asked to leave because he was underage. He was just 17.
Later in the year, three men were shot outside a Gainseville nightclub. While the description fitted him, it remains unproven that it was Hernandez. Skipping onto 2012, two men were shot and Hernandez was convicted. He also killed Odin Lloyd and was convicted of his murder in 2015. He was sentenced to life in prison without parole.