Police in Las Vegas say a former boyfriend accused of killing a former Washington Redskins cheerleader choked her, chopped her naked into pieces and then covered her in cement. A police arrest report alleges Jason Griffith killed Deborah Flores-Narvaez, 31, after an argument at his home Dec. 12. Griffith, 32, was arrested Friday after police say they found Flores-Narvaez’s body in a Las Vegas home.