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as the crowd size swelled and tempered flared. police say demonstrators were refusing to follow orders to stay off the road and several tried to interfere when an arrest was made. and in oregon pepper spray was used to disperse dozens of people. ten were arrested. in rhode island a fight broke out among protesters. police say off duty -- an off duty officer and state senate candidate punched his political rival, jennifer rork. she says it happened as she attempted to deescalate the situation. we have reportered on the kr ground covering on the latest. let's go to the u.s. supreme...

>> the parents and kids. i couldn't imagine mine being down there. or anybody else that i know. it was not something i wanted to see. and the people who watch the video i took are shaking and just can't believe it. freaked out. >> the people you saw that got hit, were they young or old? >> they looked young to me. i don't know. i was five stories up. i have no idea ages. it was a band of some sort. that's all i know. >> and just explain where we are. you were watching this from the corner of maine and bar stow. and do you know if this was sort of the early part of the parade? >> i don't know. ...

>> reporter: ultimately laundrie is sent to a hotel and police deem the reaction a mental health crisis. >> do you have anxiety. >> please, please. >> jean casarez, thank you very much for that reporting. >> the gabby petito case has led to increased scrutiny on other missing persons case, including the case of lauren cho who went missing from the california desert. cnn's natasha chen is following developments for us. >> lauren cho, whom friends call elle had been staying at an airbnb desert resort when she vanished in late june. a 30-year-old new jersey native, cho was staying there with frie...