It is not clear why prosecutors decided to throw the full weight of the law at Davis.
Florida, though, has a history of "very zealous" prosecutions, according to Marc Mauer, executive director of the Washington-based Sentencing Project, which advocates for reform in the criminal-justice system.
For example, Florida leads in the number of juveniles sentenced to life without parole for lesser crimes than murder, sentences the Supreme Court declared to be unconstitutional in 2010. Florida and other states are now trying to determine how to resentence or grant parole to inmates affected by that ruling.
According to a recent study by the Pew Center on the States, Florida was first, among the 35 states reporting, in increases in time served in its prisons from 1990 to 2009.
In one recent, highly controversial Florida sentencing, Marissa Alexander, an African-American woman in Jacksonville with no previous criminal record, was sentenced to 20 years for firing a pistol twice into the air while trying to ward off an attack by her abusive husband. Denied the protection of Florida's controversial "stand your ground" law, the 31-year-old mother of three was convicted of aggravated assault, a felony, and given the mandatory sentence for anyone who fires a gun in commission of the felony.