A second jury deadlocked and a judge declared another mistrial Wednesday in the case of an Alabama police officer charged with using excessive force against an Indian man. U.S. District Judge Madeline Haikala ended the retrial of Madison police officer Eric Parker after jurors said they couldn't reach a unanimous verdict on the civil rights charge. They deliberated more than 15 hours over four days. Parker didn't show any visible reaction in court. The first jury deadlocked in September. Parker is accused of violating the rights of 58-year-old Sureshbhai Patel in February, when Parker knocked Patel to the ground while investigating a suspicious person complaint. He testified the man aroused suspicion by trying to pull away from him. Governor Robert Bentley has apologized to the Indian government for Patel's treatment, calling it a case of excessive force. Patel has filed a civil lawsuit against Parker, and the city of Madison is attempting to fire him. Parker also faces an assault charge in state court.