Unfortunately, if true, it is reported that of 13 shootings resulting from the Florida law, 12 of the people shot had no weapon on them when they were shot. Apparently the legal and legislative establishment is disturbed enough that they are going to revisit this law.
What is the background of the other 12 shootings? How many of the people shot were trying to break into a house? Armed or not, you enter a house and put others in fear for their safety you get what you deserve.
If Zimmerman didn't call into 9-11, I might have a whole different take on the matter.
The purpose of a defensive firearm is protect a person from assault by bigger stronger thugs, who do not need a weapon to kill you.