To convict someone of premeditated first degree murder in Florida, the prosecutor must prove several elements. The elements are:
1. The victim is dead.
2. The death was caused by the criminal act of the suspect.
3. The killing was premeditated.
Premeditated killing is when you kill someone after making the conscious decision to do so. You must have the intent to kill at the time of the killing. The time between your decision and the killing has to be long enough for you to reflect.
Whether or not the murder was premeditated is up to a criminal jury.