The audience with President Obama was brief, and Dexter Pittman knew it was not the right time, even if it was the right place.

Then again, the Miami Heat backup center had made his feelings clear earlier in the month on Twitter, when he posted, "Gun proposal. #forit. If we had things together three years ago, my baby brother will be alive. But his life was taken by one of his peers. At 15."

"I would have loved to talk about it," Pittman said in a reflective moment in the wake of the Heat's White House visit last Monday, the visit commemorating the team's 2012 NBA championship. "I wanted to talk to him about obesity and gun control."