The smart gun law would have done nothing to prevent a security guard from having access to a firearm, which this fuckwad appears to have been.

Florida doesn't require a license or permit to flat out own a gun. Is it a problem? Yes. Does it apply in this case? If stretching it, yes.

To carry a concealed weapon, you operate under Florida Statue Title XLVI Chapter 760.06, which doesn't do much here, again, seeing as it speeds along the process for anyone certified as such:

(2) The Department of Agriculture and Consumer Services shall issue a license if the applicant: [...]

(h) Demonstrates competence with a firearm by any one of the following:

1. Completion of any hunter education or hunter safety course approved by the Fish and Wildlife Conservation Commission or a similar agency of another state;

2. Completion of any National Rifle Association firearms safety or training course;

3. Completion of any firearms safety or training course or class available to the general public offered by a law enforcement agency, junior college, college, or private or public institution or organization or firearms training school, using instructors certified by the National Rifle Association, Criminal Justice Standards and Training Commission, or the Department of Agriculture and Consumer Services;

4. Completion of any law enforcement firearms safety or training course or class offered for security guards, investigators, special deputies, or any division or subdivision of a law enforcement agency or security enforcement;

5. Presents evidence of equivalent experience with a firearm through participation in organized shooting competition or military service;

6. Is licensed or has been licensed to carry a firearm in this state or a county or municipality of this state, unless such license has been revoked for cause; or

7. Completion of any firearms training or safety course or class conducted by a state-certified or National Rifle Association certified firearms instructor;

Those are a lot of easy ways to get concealed carry by passing a government background check via a gun advocacy program. Hell, you don't even have to meet face to face with another human in order to receive certification (Ref: Question 6). I guess my point being: 'in a perfect world' there'd be more safety hoops to jump through to prevent 'fuckwads' in general from carrying out murder sprees with guns, regardless of ethnicity; let's face it, yesterday's shooting was by a white male, the problem is larger than pinning a scapegoat.

EDIT: Forgive me for the source, I'd rather be referencing a right-of-center source in this context. Here's a timeline of 2015 and today on how the killers got their hands on guns. There are clear red flags which would make one stop and think that their rights to weapons should have been taken at many points.