Like I said in the last day or two here - this may cost Broward County School District and other Broward county agencies into the billions. They had numerous warnings over the years. They did not try to make the place safer - they manipulated the rules and the law to make if less safe.
If lawsuits are filed for this and they go to trial it might be similar to the Big Tobacco trials.
Another sad thing is that any trials will be used for virtue-posturing and to push the legislature to pass more gun-grabber laws.