One of Canada’s top investors, John Ruffolo, is back from the brink with a new $500 million fund – TechCrunch

John Ruffolo isn’t as famous as some investors, but he’s very well-known in Canadian business circles. The longtime head of Arthur Andersen’s tech, media, and telecommunications practice, he joined OMERS roughly a decade ago when a former colleague became CEO and brought him aboard the pension giant to create a venture fund. The idea was…