Black Friday WalMart Stampede Under Police Review

Nassau County NY police officials are reviewing videotape of the trampling death of a WalMart employee in Valley Stream, NY.  Witnesses at the scene of Friday's death told police that the crowd seemed less concerned about the trampled man than their ability to get the discounted products in the store.  While this speaks volumes about our society and its values, I'm not posting today about this.  I'm wondering why the police would be reviewing the videotape of the trampling death.  It seems to me that there is no criminal intent involved in the tragic death.  Secondly, how could you possibly identify the person who actually caused the employee's death?  By definition, a stampede involves a crowd of people.  That would prove nearly impossible to identify who stepped on the stricken employee.  However, the first point is the more valid one.  Yes, we should all be outraged that someone lost their life in such a tragic fashion.  However, tragedy doesn't mean that a crime occurred.  This seems to me a matter for the civil law to mete out proper justice for the employee's family.  Unless someone shows me more evidence, there was no crime commtted here.