By Amanda MilkovitsPROVIDENCE, R.I. -- A man accused of driving two gunmen away after they allegedly shot at police officers and rival gang members Wednesday night is ordered held on bail. Meanwhile, the mother of one of the men accused of shooting at the police blamed the incident on "dirty cops," whom she said often harassed her 20-year-old son, James Lawrence. What about the gun that police allegedly saw him fire, and then fling?