As chairman of the Texas Transportation Commission, Ric Williamson made major and often controversial decisions about the future of state roads. He died Sunday of a heart attack, at age 55, in his hometown of Weatherford, leaving a legacy as the hard-charging official that steered Gov. Rick Perry's divisive vision of toll roads across Texas into state policy. It was stressful work, and Mr. Williamson suffered two heart attacks while serving. He had known his health was fragile. "I'm trying to avoid the third one, which the doctors tell me will be fatal," he told Texas Monthly in a June...