LeBron James and the Miami Heat were thinking about a lot more than basketball Friday. All anyone needed to do was look at their shoes. James and Dwyane Wade were among several Miami players who took the floor with messages on their sneakers about the death of an unarmed black teenager who was shot by a neighborhood crime-watch volunteer in a suburb of Orlando, Fla. The Heat made quick work of the Pistons in an 88-73 victory, but the focus afterward was on the team's decision to speak out.