Zimmerman was not found "innocent."

This is a point the right wing Constitution-thumpers don't seem to get: the American criminal justice system, taking into account human fallibility and evidentiary problems, is designed to let many guilty people go free in order to ensure that no innocent people are proven guilty.

This is what "innocent until proven guilty" means.

So the jury may well have felt that Zimmerman was guilty--just not past "a reasonable doubt."
That's a heckuva long way from thinking he was innocent.

And there's the added problem of the "stand your ground" law, written up by the NRA and obediently put into the books in states controlled by the NRA's political arm, AKA the Republican Party. The "stand your ground" law makes it so difficult to convict anyone of murder that police departments hate it while criminal gangs love it.

So the jury may have obeyed Florida's "stand your ground" law's dictates while feeling that this law is bad law. In states that rule out citing "self defense" if you initiated the altercation, Zimmerman would have been found guilty of manslaughter. That's what juror B29 was trying to say, I believe.