Walgreens security guard cleared in Banko Brown killing.

The security guard who shot and killed a young person at a Walgreens in San Francisco last week will not face charges, according to the city's District Attorney. The guard, who was working as a private security guard at the time, was arrested following the shooting, which police said occurred during a theft. The victim was identified as 24-year-old San Francisco resident Chynna Brown. The District Attorney's office said that the evidence showed the guard believed he was in mortal danger and acted in self-defense. Community activists gathered outside the Walgreens to demand justice for Brown.