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                        Investigators are still trying to sort out what happened.
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                        Detectives believe the attack was gang related. One adult and three teens were arrested.
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                        The suspected gunman is arrested.
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                        Prosecutors say the man and his accomplice fired a volly of shots into the living room of a house where a family was sitting.
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                        Shooting came after taser, and beanbag gun failed to stop man armed with knife.
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                        Officers say man refused orders to drop weapon. They say they opened fire after he raised weapon towards them.
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                        17-year-old girl reported to be in stable condition after emergency surgery.
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                        There's no word on a possible motive for the April killing.
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                        Two arrested for fatal March shooting.
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                        She was fatally wounded Sunday night.