Lou Brock, Baseball Hall Of Famer Known for Stealing Bases, Dies at 81. Lou Brock, the St. Louis Cardinals’ Hall of Fame outfielder who in a career spanning two decades became the greatest base-stealer the major leagues had ever known when he eclipsed the single-season and career records for steals, died on Sunday. He was 81. Dick Zitzmann, Brock’s agent, confirmed the death to The Associated Press, but did not provide any details. Brock began receiving treatment for multiple myeloma, a type of blood cancer, in 2017. His left leg was amputated in 2015 as a result of a diabetes-related infection. On June 15, 1964, a floundering Cardinals team traded one of the National League’s leading pitchers for an outfielder who had failed to live up to his promise. That deal, sending the right-hander Ernie Broglio to the Chicago Cubs for Brock as the centerpiece of a six-player swap, became one of the most one-sided trades in baseball history, but hardly in the way that many envisioned. Broglio won only seven games for the Cubs over the next two and a half seasons, then retired. Brock, sought by Cardinals Manager Johnny Keane for his largely untapped speed, helped take St. Louis to the 1964 World Series championship and went on to turn around games year after year with his feet and his bat.