BALTIMORE (AP) — Body camera video captured a scene rarely made public: a Baltimore SWAT supervisor ordering an officer to kill a man holding two children hostage with a knife. Moments later, video shows Wein walking up the steps, exchanging a few words with Owens, who still refuses to cooperate, and then firing a single fatal shot. More such dramatic videos are expected to become available in cities nationwide where body cameras are being deployed by police agencies, pressed for greater transparency in dealings with the public after protests in recent years over the deaths of black men and others at the hands of law enforcement. Civil unrest erupted across Baltimore in 2015 after the death of Freddie Gray, a young black man whose neck was broken in the back of a police transport van. Last year, the department began deploying body cameras, and earlier this year entered into a consent decree with the U.S.