Eric Garner Protests in Berkeley, Calif., Turn Violent

Protestors could have tangible effects on police department procedures.
3:58 | 12/07/14

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Transcript for Eric Garner Protests in Berkeley, Calif., Turn Violent
about which teams are likely to make the cut. But first, Berkeley, California. The protests started peacefully, but turned violent. Officers wound up injured. Aditi Roy is in Berkeley with the very latest. Reporter: Good morning, Paula. I'm standing in front of a trader Joe's store which was vandalized. The windows here were smashed in and boarded up. Just one sign of a hard night in Berkeley. Chaos overnight when a March condemning police brutality took a violent turn. With more than 400 demonstrators surging through Berkeley's streets, what began as a peaceful protest -- No violence. Reporter: Quickly spiralled out of control. Officers in body armor and riot gear unleashing tear gas to break up the fiery crowd. Agitated protesters vandalizing cars and smashing win dose of downtown businesses. We're just blocks away from campuses. Police are facing off. Earlier they used tear gas against the protesters. The crowd reportedly looting this radioshack store after bashing their way in. You know, that window breaks, that window started breaking. Guy with a crowbar comes in and starts stealing stuff. Reporter: And New York City's grand central terminal. Please stop, I cannot breathe. Reporter: Hundreds protesting against the grand jury's decision not to indict officer Daniel Pantaleo in the chokehold death of Eric garner. And derrick rose getting in on the action, spoorgt black I can't breathe t-shirt during warmups Saturday night. The violence in Berkeley injured at least two officers, one struck by a large sandbag. Rushed to a nearby hospital for a dislocated shoulder. We felt the burn of the tear gas firsthand in our eyes and our throats. Fortunately this morning it's back to Normal and quiet. Thank you. A wild night. Let's bring in George stephanopoulos who will be focusing on the cases in new York City and Ferguson on "This week" this morning. All this anger on the streets, leading to any real change in how police departments operate? That's the big question. You saw president Obama saying he wants to fund more police cameras across the country. And you're likely to see, and in New York this week, a new emphasis in training on conflict resolution rather than resorting to force. Even though these cases have been highly publicized, most criminologists believe police forces are more professional, and the dangerous encounters have individuals has gone down over time. There's a racial divide in terms of how these events in new York and Ferguson are perceived. How divided are we? About as divided as you can get. Especially in Ferguson. People tend to bring to the case -- tend to take out of the case what they brought into it. There's been a slightly different reaction to the garner case in New York. You have seen more condemnation across racial lines, across partisan lines over the grand jury's decision here. Remind everybody that George has a big show. Including his interview with new York mayor bill de Blasio. That's here on ABC. Thanks. Thanks, George. And now to the close up look

This transcript has been automatically generated and may not be 100% accurate.

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