Mayor Marion Barry's attorney asked on Friday for a retrial, saying deputy U.S. marshals may have influenced jurors by telling them alternate jurors would have voted to convict the mayor of all charges.

Attorney R. Kenneth Mundy also argued that a retrial was justified because some jurors witnessed an undercover drug sting operation at the hotel where they were sequestered.Barry was convicted on Aug. 10 of a misdemeanor cocaine possession charge and acquitted of another. The jury could not reach a verdict on 12 other charges.