. >>> north arvada middle school went on lockdown this afternoon. severalty students saw a gun in another student's backpack. it turned out to be a bb gun. the lockdown began around 1:20 and was lifted after each classroom was systemically and students went home at the regular time. >>> and denver s.w.a.t. team members arrested a suspect last night for robbery. the fbi believes that the 24- year-old robbed banks in denver, lakeland, and littleton since february 24. driver. >>> today, the city of denver began sweeping homeless camps off sidewalks. city crews expected trouble and came with about two to seen police and sheriffs deputies and blocked the streets as they stuffed things into green garbage bins as protesters watched and shouted at police. a spokesperson said that the move is part of the plan to get the homeless off the streets. advocates say they are criminalizing these people and making the problem worse. >> they feel defeated already and now, by taking their stuff, they are degrading the people, embarrassing the people, and you got camera