From Local 10: TSA busy this week at FLL TSA has the authority neither to seize anything nor to investigate any criminal matter. Other articles indicate that the investigation was, in fact, carried out by the Broward County Sheriffs Office & the U.S. Marshals Service. Head on, I would hope.
Oooh, an "ancient cannonbal"! Scary!! Speaking of which, you might want to go over and give inveterate TSA apologist "DavidYoung2" a lesson: http://www.elliott.org/blog/tsa-watch-whos-more-dangerous-terrorists-or-the-tsa/#comment-443705902