HOUSTON – Judging by his accolades, Vincent Grayson was a standup guy and a good coach. He was the head basketball coach at a Houston public high school in the state’s largest school district. Earlier this year he was nominated for High School Coach of the Year at the Houston Sports Awards. He led the team to their first-ever UIL state tournament in 2023. Now he’s accused of being the ‘kingpin’ in a teacher cheating scandal that brought in more than a million dollars over four years and put more than 210 uncertified teachers in schools throughout the state. Two...