fund manager. Died Feb. 6. Rem Vyakhirev, 78. He was CEO of OAO Gazprom, the world’s biggest natural-gas producer, from 1993 to 2001. Died Feb. 11. Stokley Towles, 77. He spent his career at the Boston office of New York-based Brown Brothers Harriman & Co., creating the firm’s global custody service, which now