By Matt Hladik Tampa Bay Buccaneers running back Leonard Fournette rushed for two touchdowns in his team’s playoff loss on Sunday, all while playing with a heavy heart. Fournette revealed after the game that his cousin was killed in New Orleans on Friday night. FOX8Live confirmed that Renard Fournette, 27, was found shot to death in a car outside of the Greater New Jerusalem Missionary Baptist Church. “This whole week has been a very difficult week for me. Two days prior to the game my cousin got killed,” Fournette said postgame. “I’m just trying to keep everything together. It’s been a long w…