FILE - In this May 18, 2015 file photo, law enforcement continue to investigate the motorcycle gang related shooting at the Twin Peaks restaurant in Waco, Texas, where 9 were killed and over a dozen injured. Police shot bikers in the deadly shootout that erupted last spring outside a Texas restaurant, though it remains unclear if their bullets caused any of the nine fatalities, according to evidence reviewed by The Associated Press. (AP Photo/Jerry Larson, File)
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