Well, they need to look at all his tweets that show extensive drug use, especially of dextromethorphan and how the latter produces changes in the brain and liver, how those changes were observed in his autopsy, and how the radical changes in behavior, especially violent behavior, associated with the abuse of this drug showed up in Trayvon shortly after he started using it as manifested by incidents at his school.
I had to look it up - I had no idea that people used dextromethorphan “recreationally.” But that would certainly account for St Trayvon’s behavior.