I am shocked and saddened by the tragic death of Commissioner Costello. Oklahoma has lost a leader who had a unique passion for politics and took great pride in the work he did on behalf of all Oklahomans. He was a model public servant, and we are all better for the example and legacy he leaves behind. My thoughts and prayers are with his family in their time of mourning. Senate Pres. Pro Tempore Brian Bingman, R-Sapulpa