>> everybody has the right to be safe. >> reporter: they say they are protecting them with wars, a site run by conspiracy they are "rick's list"s. they say police are leaving them alone. protesters shut down the interstate in st. louis. >> many of the people who have their own agenda and wish to escalate violence, they mix in with a lot of the peaceful protesters. it is difficult. particularly for law enforcement who has no idea who is who. >> reporter: four shootings sunday night. 18-year-old tyrone harris remains in critical condition after being shot by police late sunday. >> please get him some help. >> reporter: there's a lot of people talking about separating those protesters from those who come to do other things. a lot of people want to say, look, there needs to be a separation between people who show up to protest and others