By Joseph Ax (Reuters) – A former Minneapolis police officer charged in connection with the murder of George Floyd pleaded guilty on Monday as his trial was about to begin, a court spokesperson confirmed. J. Alexander Kueng, who pleaded guilty to one count of aiding and abetting manslaughter in state court, was one of three officers who did not intervene while Derek Chauvin, a white policeman, knelt on Floyd’s neck for more than nine minutes in May 2020, killing him. Kueng and Thomas Lane helped Chauvin restrain Floyd, an unarmed Black man, while another officer, Tou Thao, kept bystanders from…