I believe much of this has been answered for you before.
"#What is a public record?
The Florida Supreme Court has determined that public records are all materials made or received by an agency in connection with official business which are used to perpetuate, communicate or formalize knowledge. They are not limited to traditional written documents. Tapes, photographs, films and sound recordings are also considered public records subject to inspection unless a statutory exemption exists.
# Does an agency have to explain why it denies access to public records?
A custodian of a public record who contends that the record or part of a record is exempt from inspection must state the basis for that exemption, including the statutory citation. Additionally, when asked, the custodian must state in writing the reasons for concluding the record is exempt.
# When does a document sent to a public agency become a public document?
As soon as a document is received by a public agency, it becomes a public record, unless there is a legislatively created exemption which makes it confidential and not subject to disclosure."http://www.myflsunshine.com/sun.nsf/pages/FAQs
So in other wards as soon as the defense gives it to the SA or clerk of court it becomes public record. If that info is not eligible for release according to sunshine the agency must state why that info is not eligible for release. So if the defense did hand anything over we would know..that or we would know it was handed over but not what was handed over to put it simply.
In regards to exculpatory evidence the state would be required to turn over such evidence as it's part of due process. If not it would be clear grounds for an appeal. It's part of the US Supreme Courts decision in Brady v. Maryland 373 US 83 (1963).
http://supreme.justia.com/us/373/83/
So in other words that poster would be wrong in that assumption.
In regards to your email statement I believe you are referring to JJ. If I recall JJ gave a sworn statement negating his email comments.
HTH