Fast Case is a legal research database provided free-of-charge to members of the Florida Bar and is available to students on the list of law-related databases. Once you are sworn in, it is beneficial to play with some of the search tools. Fast Case has some ways to present search results visually, which allow quick assessment of the value of an individual result and show connections between results.
For example, here is a representation of all Florida cases containing the term "felony murder":
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