Not hard , the cameras face in one direction , limited field of view . The vans also have limited focus , not to mention , from what is known , all were from large cal rifles , which in my mind , means the shooters were probably not all too close . One of the reasons I couldnt wait to get out of Phoenix , is that its a concrete jungle of buildings . ” 8 million people in the metro area , and 1 billion cars ” , and the place continues to spread . This is the same place where they had a sniper shooting random drivers on I 10 .