What witnesses say in the Trayvon Martin case

On the night of February 26, Trayvon Martin was wearing a hoodie and had bought Skittles and an Arizona tea at a convenience store in Sanford, Florida. Some time after that, he was shot and killed by neighborhood watch member George Zimmerman.

But beyond those established facts about the shooting of the unarmed teenager in an Orlando suburb last month, much is in dispute about the case that has gripped the nation.

Of the two people directly involved, Martin will never be able to describe what happened, and Zimmerman has kept mum. His lawyer vows that, once all the facts surface, things will not appear as clear-cut as they are to many of Martin's supporters at the moment.