ABCNews -- When dozens of fans and supporters for James Arthur Ray showed up for one of his events in Toronto Wednesday night, they were greeted by a handwritten sign saying the event had been canceled. At the time no explanation was given, but one of Ray's former mentors, Bob Proctor, apparently convinced Ray to cancel the seminar just hours before it was scheduled to start, ABC News has learned. In a post on his Web site today, Ray said he is postponing the rest of his events for the year to help "get to the bottom" of the incident in Sedona, Ariz., earlier this month in which three people died after attending one of his seminars in a sweat lodge. "These families deserve to have the questions raised by the tragedy answered as quickly and...