from your perspective as a member of law enforcement, what tips or clues are you taking in as we look at this video of the red suv zipping down the street and out of camera range plowing into a crowd of people? >> considering the fact this incident happened roughly two, two and a half hours ago now, certainly a great deal has been determined. the most important thing law enforcement has been able to do and the first thing that has to be done and has been done is to be able to get care to those people who were injured. they certainly are going to be a very important part of this investigation in some type of way and certainly witnesses who were on the scene who saw this vehicle go into a crowd of those in the parade this is sad, troubling, disturbing to anybody