bottles and bricks thrown, officers responded by deploying smoke. it marred what had been a peaceful protest. as protests and arrests continued monday, the violence frustrated advocates who want to keep the focus on reducing police shootings. >> many people who have their own agendas who do wish to escalate, they mix in, so it is difficult. particularly for law enforcement, who has no idea oftentimes who is how who. >> police say the wounded suspect is 18 years old tyrone harris, from st. louis, charged today with ten criminal counts, contacted by cnn, harris' aunt denies he shot at police, saying he wasn't carrying a gun. police chief bellmore is appealing to the community to rein in larbs. >> we can't sustain this. we have individuals armed who