So when a person like Zimmerman refuses to take the stand in his own defense

[Savannahmann]

81. The decision is based upon numerous factors

Does the jury know his side of the story? Certainly, they viewed, and can review the video description of events that the prosecution entered into evidence. People here shouted, screamed, frothed about that for some time. He testified without testifying. You can't cross examine the video, all you can do is watch it and see what the Defendant said happened.

All the arguments that he could have made on the stand, were made for him, many by the prosecutions witnesses under the cross examination. So why would he testify? It allows the Prosecution to badger him, and people here say trip him up, but they could also mis-represent his story by twisting the testimony out of all shape and size.

No, I don't think his refusal to testify will be seen as an admission of guilt. I think it was smart. The jury is sequestered. His testimony, and cross examination could have gone on for days. That is more time for the jury away from their families, and more time locked down prisoner like with restricted access to media, entertainment, and information. Better to close it out quickly, your message is out there remember, and then leave it up to them.