In typical Obama fashion,
he's again used current events to further a largely unrelated agenda. The Zimmerman case had nothing to do with Stand Your Ground, because he was on his way back to his car when the altercation began; it was purely a self defense case, which is legally significantly different. But facts have never mattered to Obama, so he's jumped at the chance to apologize for the ridiculous reaction of the black community and to try to further control gun ownership and usage.
edit: Do I even need to mention "I saved Detroit"?