There is an offense in Florida called felony murder which is distinct from premeditated murder.
782.04 Murder.
(1)(a) The unlawful killing of a human being:
2. When committed by a person engaged in the perpetration of, or in the attempt to perpetrate, any:
d. Robbery
is murder in the first degree and constitutes a capital felony, punishable as provided in s. 775.082.
I do not opine whether this applies to the particular facts in your question.
I recommend you should consult with a criminal defense attorney ASAP & not wait to being arrested or having any contact with law enforcement
Answered on Mar 30th, 2018 at 6:17 AM