Michael Ray Richardson, a versatile guard who was banned from the NBA for violating its drug policy in the 1980s, died Tuesday. He was 70. Richardson’s attorney and close friend, John Zelbst, confirmed his death to The Associated Press. Richardson, who had prostate cancer, died at his Lawton, Oklahoma, home, with his wife, Kimberly, present. News outlet Andscape first reported his death. Richardson was a three-time All-Big Sky Conference player at Montana before being selected No. 4 in the 1978