§782.02--Justifiable Use of Deadly Force
The use of deadly force is justifiable when a person is resisting any attempt to murder such person or to commit any felony upon him or her or upon or in any dwelling house in which such person shall be.
The Constitution of the State of Florida as revised in 1968 and subsequently amended
§776.031--Use of Force in Defense of Others
A person is justified in the use of force, except deadly force, against another when and to the extent that the person reasonably believes that such conduct is necessary to prevent or terminate the other's trespass on, or other tortious or criminal interference with, either real property other than a dwelling or personal property, lawfully in his or her possession or in the possession of another who is a member of his or her immediate family or household or of a person whose property he or she has a legal duty to protect. However, the person is justified in the use of deadly force only if he or she reasonably believes that such force is necessary to prevent the imminent commission of a forcible felony. A person does not have a duty to retreat if the person is in a place where he or she has a right to be.
-Fla. Stat. Sect. 776.032 as taken from West Law