The Forensics report indicated that he did not died due to Sickle Cell Trait. Why haven't arrests been made?
Check out this video:
http://www.geraldoatlarge.com/video-archive.php? offset=3&go=10&query=1&orderby=published&cending=D ESC&where_param=month&month=3&year=2006
Copy and paste the complete URL in your browser. Click on Autopsy Debate at the bottom of the page.