I was actually kind of surprised they had to litigate this issue, what with the right to remain silent being a Constitutionally protected right. Last week, the Florida Supreme Court unanimously agreed with the 4th Circuit Court of Appeal that it is improper for the state to comment on the the pre-Miranda silence of a Defendant who does not take the stand. Basically, if someone exercises their right to remain silent… it cannot be used against them. I suspect the Florida Supreme Court was suprised the issue needed to be litigated, the 4th DCA opinion that they upheld was just issued on February 18. The appellate court certified the question as one of great public importance, but that is still an impressive turnaround at the highest court in the state.

Donna Horwitz, via FL DOC
The Court sent back the conviction of Donna Horwitz, convicted of first degree murder in the death of her husband. When police responded to the shooting, they asked Ms. Horwitz several questions, and she stood mute. The prosecutor successfully argued at trial that her silence was indicative of a consciousness of guilt, and she was convicted and sentenced to life in prison. The Court ruled, consistent with longstanding precedent around the country, that his is unfair comment on the right to remain silent. It would essentially force a defendant to testify to rebut the assertion, which is improper.
Further, the court observed that the evidence of silence would not be relevant and is inadmissible under basic rules of evidence. While silence potentially could indicate consciousness of guilt, the meaning is ambiguous. It could be shock, or a concern that officers would not believe the story, or many other things. Due to the ambiguity, it is not relevant to the elements of the crime, and would also be inadmissible for this reason.
You have a right to remain silent… use it. The State cannot use it against you if you do.
The Opinion