this very topic on the street. indications of either of those that you saw quickly? >> reporter: i have to tell you that is a great question and unless someone is carrying a sign that specifically says who they support, it's very difficult to tell. and the reason is that many, many people in the crowd on both sides have masks covering part of their face. those who support trump are wearing helmets, things to protect themselves from being hit. we've seen pepsi cans flying in the air and bottles flying in the air. the people don't want to get hit. a lot of people have on protective clothing. so it's very difficult to tell exactly where they're from. i can tell you that a lot of people in the crowd do look young, younger. maybe in their 20s. but it's hard to tell at this point if they're students or not. >> kntv christy smith on the ground for us. berkeley, california. these pictures evidently a garbage fire if you will, small