When attorney Jose Baez first met Aaron Hernandez in 2016, the former NFL star was already serving life in prison. The then-26-year-old had been arrested for the murder of Odin Lloyd, an acquaintance, in 2013, after three seasons with the New England Patriots. Now, he needed a lawyer for another indictment, involving an earlier double-homicide. Baez took the case, and grew close with the athlete. He helped Hernandez win an acquittal on April 14, 2017, but days later, on April 19, the 27-year-old hanged himself in his cell. A brain scan revealed that the former tight-end had suffered severe brain...