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Los Angeles Police Department Chief Charlie Beck (C) speaks during a news conference at Los Angeles Dodger Stadium as Los Angeles Dodgers owner Frank McCourt (R) and former LAPD chief William Bratton listen prior to a game between the St. Louis Cardinals and Los Angeles Dodgers on April 14, 2011 in Los Angeles, California. Large numbers of LAPD officers are being deployed as part of a zero tolerance policy toward misbehaving fans in response to the opening day attack on Stow two weeks ago.
Gun violence is of special concern to residents in the northern California city of Oakland.
Last Friday, in a period of just six hours, four people were fatally shot. Oakland's Chief of police has blamed a spike in violence in recent months on a feud between two gangs. The feud began last summer over the death of a young woman.
For more on this we're joined now by reporter Mina Kim of member station KQED.