BLACK RIVER FALLS, Wis. — An attorney for a Jackson County sheriff’s deputy said he will ask that a charge against the deputy for a fatal on-duty shooting be dismissed. The dismissal motion will be filed at a hearing next week. The deputy, Stan Edington, has said he fired shots at a teen-age driver who had been stopped after a chase and who, Edington thought, was backing up at high speed and had run down a fellow officer.