Both First and Sexond degree murders will get you imprisoned for a long time accordjng to the Florida Law.
If a person committing a predicate felony directly contributed to the death of the victim then the person will be charged with murder in the first degree. If a person commits a predicate felony, but was not the direct contributor to the death of the victim then the person will be charged with murder in the second degree. The only two sentences available for that statute are life imprisonment and the death penalty. The maximum prison term is life. 
