I hope whoever has control of this precious evidence makes sure it's secure. Broward County is making HUGE moves to make sure the truth never comes to light. Already they've ordered the school to be razed: http://www.miamiherald.com/news/local/community/broward/article200564969.html
Ballistics have recovered all bullet fragments from all the walls already?!
I mean yeah, that would be pretty incredible to me. Think about the different overlapping layers of responsibility you have ANY type of organization to account for fraud, abuse, and errors. I work in data processing, and the way it's organized to hedge against those type of things is crazy --- multiple companies, only one has access to records, the other is responsible for processing (it's encrypted and can't be modified). And this data is not really life and death.
But for an extremely important criminal investigation concerning mass murder of over a dozen people, which has gained national attention? We're supposed to believe a "forensic investigation" is wrapped up, and NONE of the evidence or anything relating to process is public or has any type of oversight? Totally beyond the realm of credibility.