I’m sure you’re being sarcastic.
If the prosecutors had a duty to disclose all the evidence - even that which refutes their claim - then they are so negligent that it is criminal.
Here’s the letter from the Sanford City Manager, dated 3/23/12.
This whole case is further diminishing my limited faith in the American system of justice. Whatever the outcome for Zimmerman, the net result of the case will be a lot more cynicism on the part of the public to how the judicial system operates. Truth and falsehood, guilt or innocence, don't matter. It's all about advancing your career as a lawyer or a prosecutor.