The Calusas didn't kill De Soto. He was killed in Ga. or Mississippee from infection from a cane arrow that splintered on his chain mail. His soldiers dumped him in the Mississippee River as they escaped to Mexico.
nclonghunter, yes there are arrow points and atlatl points in Florida. Some of the best examples including one my friend has called "Big Red", transluscent, red, coral is appraised at 20 to 30 thousand right now. I found one in the Peace river a few years ago that is in a book called the Best Of The South listed for $2400.