At least nine people have been arrested as protests erupted in St. Louis, Missouri, after police shot and killed another African-American teenager Wednesday. St. Louis police say they shot 18-year-old Mansur Ball-Bey after he pointed a gun at officers as he fled from a house where police were executing a search warrant. The shooting came 10 days after the first anniversary of the police killing of Michael Brown in the St. Louis suburb of Ferguson, which sparked protests nationwide. As protesters gathered to condemn the latest killing, police fired smoke canisters and tear gas, and accused demonstrators of throwing glass bottles and bricks. Images and video overnight showed a car and a building on fire. Activists and clergy condemned the police response as overly aggressive. Reverend Renita Lamkin told the St. Louis Post-Dispatch, “There has to be a better way, but the better way is not to terrorize an already terrorized community.”