[Buckeye McFrog]

was Mateen on the “No-Fly List?”

I dunno. But he was a security guard and had cleared all checks (including permit to carry).

[HOYA97]

I suspect that he was not on a “No-Fly List” and this law would make little if any difference.

[barmag25]

No on the list.

http://www.bloomberg.com/news/articles/2016-06-13/orlando-shooter-wasn-t-on-u-s-no-fly-list-despite-fbi-probes