Cameras on the plaza where the memorial stands. Investigators think they know who is responsible for this latest incident. Denvers police chief says it is disheartening to see the memorial vandalized a second time. I really felt sick. That memorial represents men and women who have given their lives serving this community and to deface it is a dishonor to those individuals and the men and women in this department and the community. The mayor michael man Congress Said he was hancock said he was extremely upset. A number of people got a rude awakening this morning. Victims tell us vandals were throwing rocks through windshield. Denver Police Say Nine cars were hit about 11 a. M. Officers chase down four juveniles. They were arrested. Damage ranges from dents to shattered windows. A live look at mountain all those lucky people who had the president s day holiday off are now not so lucky in that they are stuck in slow traffic coming down the mountain. This is i70 at u. S. 6. We are expecti