I wonder how much of this falls under the NDAA of 2012, where as I understand it, suspects of acts of terror on US soil basically have no constitutional rights to due process of law.
That feels right to me. They've got the videotapes and the description from one of the victims who survived. If an American did this in another country, they wouldn't have any rights. Not to mention he ran over his own brother in front of all those people.